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Terms and Conditions

This is a legal agreement between you and DID Logic Limited. ("DID Logic"). By submitting the online application you are agreeing that you have read and understood the terms and conditions of this agreement and that you agree to be legally responsible for each and every term and condition.


This Agreement contains the complete terms and conditions that apply to your participation to in the DID Logic exchange platform. All uses in this agreement of the words "DID Logic Limited.", "we", "us" or "our" refer to DID Logic Limited., a Hong Kong limited company with its principal place of business at Office 7D, Cheuk Nang Plaza, 250 Hennesy Road, Wanchai, Hong Kong SAR. All uses of the words "Applicant” and "you" refer to you, the Applicant. “Customer” means an applicant who has completed the online registration process and has been accepted by DID Logic Limited into the DID Logic exchange platform.

Enrollment into the DID Logic service

To enroll, you must complete and submit the online application and accept these Terms. We may reject your application at our sole discretion.

Parties to the Agreement

This agreement is made between the DID Logic Limited. ("DID Logic") and the company name entered by the Applicant in the appropriate fields on DID Logic website ( upon terms acceptance.


All prices and transactions are in the U.S. dollars.

Fee Schedule and Fee Payments

SELLER refers to a Customer who has listed the DID numbers on DID Logic website, with such numbers having successfully passed the test. Test is performed by dialing your offered DID number from a PSTN network and waiting for it to arrive to server in the E164 format specified. SELLER specifies the monthly fee, maximum simultaneous channels, per-minute charge and number of included free minutes with each number offered for sale. DID Logic, upon the completed purchase of the number by another Customer, transfers this amount(s) to the SELLER’s account balance. SELLER may withdraw this accumulated balance every 30 calendar days. Withdrawals are performed using Paypal (see for terms and condition).


Certain countries will require a SELLER to receive two forms of ID from the buyer. Full list of such requirements is available at Before completing a transaction involving these DIDs, BUYER will be required to upload copies of 2 forms of identification before a purchase may be finalized.


You agree that there are no refunds available due to inability to receive calls using a SIP URI notation. You agree to review and read in its entirety the instructions available at the page; by registering with, you confirm that you fully understand the terminology used, as well as and the concept of SIP URI and inbound routes. If you feel you are unable to operate your system as specified, contact a qualified VoIP engineer for assistance. DID Logic Ltd. does not offer customer gateway troubleshooting, IT training or local equipment setup and/or repairs. There is no inbound SIP address available to receive inbound calls from the public Internet and external companies (no user@didlogic_gateway inbound URI calls are technically possible) and you agree that you fully understand this limitation, and you agree that no refunds or cancellations are honored solely based on lack of inbound SIP URI functionality.

“Monthly fee” refers to the amount that the SELLER has requested to be paid, and the BUYER has agreed to pay, in exchange for providing the offered DID number to the DID Logic Customer for the period of equal to the number of days between the two identical dates of the 2 consecutive months in the same year, for example, May 23rd, 2004 and June 23rd, 2004, with the exception of the last day of the month not having identical date in the following month, in which case the last date of the following month will be used, for example, January 31st, 2006 and February 28th, 2006.

Credit and debit transactions are facilitated to the BUYER and SELLER accounts in the DID Logic platform, to be settled per terms of this Agreement. Refunds will be given at the discretion of the Company Management. The BUYER is assumed to have tested the voice quality, channel and codec support relating to the particular number purchased and found those to be satisfactory, unless reported to our technical support via email 2 hours after the initial DID purchase. By signing up for DID Logic and making your payment, you confirm that you have carefully read the entire discussion located at the following webpage and fully understood the concepts discussed at the referenced website.

No refunds are given for prohibited usage. Certain countries restrict calling card and PIN-based systems usage. Consult the technical support prior to purchasing DID numbers from exotic destinations. In the event that your intended usage is prohibited or not supported, and you have not contacted us for clarification prior to completing your purchase, no refunds or credits will be processed.

In the event of service interruption on any specific DID purchased, BUYER may log in to and perform an automated check. DID Logic system will dial the DID to verify service. The check will return a ‘fail’ or ‘pass’ status, depending on the test results. Should the test status remain in ‘fail’ state for longer than 24 consecutive hours, monthly fee will be refunded to the BUYER. DID Logic billing system will also reverse this transaction for the SELLER to process this refund. However, any per-minute fees incurred will not be refunded.

If Paypal disputes or credit card chargebacks occur on your account, we reserve the right to stop service to protect our merchant ratings.

Prohibited use, regional unavailability and account termination

The Service may not be used for any type of mass dialing, predictive dialing, telemarketing or any other automated list dialing. Compliant North American opt-in dialer is available using at full NPA-NXX rate deck, billed 30/6. Callback usage is generally prohibited, but may be offered in limited number of countries, subject to carrier approval. Callback-capable DIDs incur monthly charges of no less than $USD50 per DID per month. Sending CLI belonging to DID Logic vendors through non-DID Logic systems, while receiving incoming calls via our facilities, is prohibited. DTMF is unavailable and calling card or other PIN-based platforms are not allowed in Malaysia, Colombia, Russia, Greece, Panama, Malta, Croatia and Bahrain. Service is not available in India, Nepal, Pakistan, Sri-Lanka, Albania, Autonomous Province of Kosovo, Algeria, Tunisia, Morocco, Egypt and Bangladesh. All usage and payments from/to these territories are technically unavailable. Accounts that show attempts to circumvent any and all of these restrictions, or having links to any of these countries will be immediately terminated without warning or the right to refund. Receiving 1 (one) complain from law enforcement agencies regarding your activities will result in immediate account termination. You agree that no warnings will be issued, and no refunds will be provided in the event of fraudulent or prohibited usage. Account research linked to police, government agency, or other law enforcement requests is billed at the rate of $USD 89.99 per 1/2 hour of administrative work, in 1/2 hour increments. PayPal chargeback fee shall be $15 and credit card chargeback fee shall be $49 per each dispute received.

Calls resulting from unauthorized access to your SIP
endpoint or IPPBX

Customer is fully responsible for all calls made using the SIP account credentials, including unauthorized calls made by third parties. To protect our customers from runaway costs should a breach occur on their end, DID Logic implements an additional layer of security by placing initial default channel and max price per minute limitations on all accounts:
- limit 2 simultaneous outgoing channels per customer.
- destinations below $0.18 per minute only.
- 60 minutes maximum call duration.
Requesting additional SIP channels and changing limits: customers can request these limits raised or lowered based on how confident they feel handling our capacity. Please contact to request a change to your channel, cost and duration limits. Include your website login email, SIP account number and a brief description of your new requirements. Calls that begin while account balance is positive may be billed after the connection terminates. Under the circumstances of IPPBX system breach, this will result in your account balance becoming negative. This negative balance amount is calculated as four times the sum of your capacity multiplied by maximum call time, for example 60x0.18x2x4= -$86.40. By singing up for the service, you agree to be fully responsible for any negative balance amounts resulting from system breach and unauthorized use. You accept unconditionally the responsibility for termination charges resulting from access to your account credentials, including calls initiated as a result of unauthorized access to your IPBPX or other SIP device, and including all malicious and runaway traffic, up to the maximum negative amount as calculated in the above example.

Restrictions on New York City Area Code 212 Numbers

Numbers from New York City Area Code 212 may NOT be ported out. The customer agrees it is leasing the number and is not buying the number. The customer acquires no ownership interest in or porting rights to the number but may have exclusive use of the number for as long as the monthly MRC and per-minute usage is paid. Any port-out or port-out attempt of an Area Code 212 number will incur a fee of $500 per 212 number. This restriction is passed from the supplying network and is their policy. We will provide full assistance on any port outs in US and Canadian non-exhausted areas and our North American footprint is fully portable at no charge, with the exception of 212 area code. Porting requests for UK numbers are subject to £40 fee per each number ported away, payable by the subscriber upon receipt of a porting request.

Dialer, short duration, telemarketing, auto-generated and other non-conversational traffic

Dialer service to countries other than the US and Canada may be available, however must be negotiated separately. US and Canadian dialer activity is allowed for Do Not Call compliant businesses only. By signing up, you agree that flatrate US48 rate does not apply to dialer. Accounts that send more than 10% of short calls OR have sub-60s ACD OR have sub-40% ASR must use the dialer tier. Presence of any of the metrics above, as recorded over 60-minute interval, will result in rate deck changed to Short Duration Dialer, which is a NPA-NXX based routing list starting at 0.009/min.

Inbound CLI

By signing up, you agree to receive Caller ID information as received from the DID vendor. CLI may contain extra digits such as 00, or have duplicate country codes added. For example, US/Canada origination is using a 10 digit format: 2125551212. You will need to add a leading 1 if you require E164 format. Other countries may use localized CLI such as 02-123-456. By signing up, you accept these Terms and confirm that your VoIP endpoint has the ability to manipulate CLI on your end. Under no circumstances we we will accept any claims regarding this behavior, including, but not limited to North American or EU numbers or any other service areas. You fully agree that CLI is to be manipulated on your PBX end at all times.

Fax and modem calls

We do not guarantee the service of modems and faxes over the VoIP system. Some devices work fine communicating with this type of service (inband), while others do not. T38 support is not included by default and may be entirely unavailable. DID VoIP service is not fully compatible with fax machines, credit card machines, and security systems. You are responsible for contacting the alarm monitoring company to test the compatibility of any alarm monitoring or security system with the VoIP services you provision. You acknowledge and understand that VoIP DID service is not compatible with many types of non-voice communications equipment, including but not limited to, some home and office security systems that are set up to make automatic phone calls, emergency phones in elevators, some aspects of satellite TV systems, digital entertainment systems, fax machines, modems and medical monitoring devices.

Qualified sellers

Selling DID numbers is only available to facilities-based carriers. Certified copies of the original telecommunication licenses from your National Regulatory Agency must be provided for our review prior to listing DID numbers. Exceptions may be granted on a case-by-case basis to certain qualified technology providers and ITSPs. Reselling DID numbers from external suppliers without requesting their explicit approval (to be mailed from the original DID owner to DID Logic Limited, via certified postal mail, addressed to our Hong Kong office) is prohibited. Any attempts to sell DID numbers from third parties without their written approval will invoke the "Prohibited usage" clause. Seller agrees to the $10 administrative and handling charge per DID number in the event the required paperwork is missing.

Price changes

Customer who is a SELLER at DID Logic must provide a three (3) months advance notice to DID Logic before a price change goes into effect. The price change cannot be set for more than 20% of the original price and may not be changed more than 2 times per year except for in mutual agreement between DID Logic and SELLER.

What “SELLER” and “BUYER” do not refer to

"Buyer" is a commercial term related to the nature of your transaction. You are NOT assigned the number(s) in the same manner your traditional residential telephone provider does. "Buyer" means the person making the payment for the purpose of receiving incoming telephone calls on one of the Exchange's numbers. You do not acquire any other rights, regardless of your country of residence, to any of the numbers you use on DID Logic. "Seller" refers to the DID Logic member providing the service. The term "Seller" does not imply the party providing the service offers you any rights of telephone number ownership in connection with the transaction.

This is not a telephone service

DID Logic services offered do not constitute provision of common carrier telecommunications services. DID Logic is only a wholesale VoIP hub for users to buy Services for its own use or resale. As such, DID Logic receives voice calls in the form of IP data packets routed via the Internet, and redirects your IP data to the underlying vendors participating in DID Logic. DID Logic is not responsible for and has no control over the reliability, safety or legality of services provided to buyers by sellers (although best effort is made to monitor service quality). Please be advised that forwarding to Skype is charged at $0.005/min, offered as-is, assumed to be experimental in nature and not guaranteed. You confirm that you fully understand the limitations of Skype forwarding prior to signing up for DID Logic service. All calls are ultimately controlled by Skype network, and Skype is under no obligation to accept such calls, route them, connect to their voicemail or pass Caller ID (which Skype, to the best of our knowledge, does not transmit with the current SIP to Skype gateway capabilities). There is absolutely no warranty offered for Skype forwarding or Skype callback. For best reliability, forward your DID numbers to another phone or SIP address. Caller ID is passed to both SIP and PSTN.Be informed that these services are not regulated in the same way traditional telephone services are regulated in your home country. By registering an account at website, YOU AGREE TO DEFEND, INDEMNIFY AND HOLD US HARMLESS FROM AND AGAINST ANY AND ALL CLAIMS, LOSSES, LIABILITY COSTS AND EXPENSES (INCLUDING BUT NOT LIMITED TO ATTORNEY'S FEES) arising from your violation of these Terms and Conditions. YOU ALSO AGREE TO DEFEND, INDEMNIFY AND HOLD US HARMLESS FROM AND AGAINST ANY AND ALL CLAIMS, LOSSES, LIABILITY COSTS AND EXPENSES (INCLUDING BUT NOT LIMITED TO ATTORNEY'S FEES) arising from fact that VoIP services may be regulated differently in your home jurisdiction (by the legislative body responsible for regulating the telecommunications industry in your home country) than they are regulated in Hong Kong SAR.

Applicable laws

These terms are subject to all present and future valid orders and regulations of any governmental or regulatory body in Hong Kong SAR having jurisdiction over the subject matter hereof and to the laws of the Hong Kong SAR. In the event that any license or taxes are required, the SELLER agrees that it will obtain that license and/or pay those taxes where required by law, and supply proof of obtaining the license (s) and paying those taxes where applicable. Licensing and the payment of taxes due by the DID Logic SELLER will be the responsibility of the SELLER and will not be the responsibility of DID Logic Limited.


The parties both agree to indemnify and hold harmless each other against any suit, claim or proceeding brought against the other Party for direct damages that result from death, bodily injury or damage to personal, tangible personal property, to the extent the damages are proven to be the result of the indemnifying party's actions or inactions.

Limitation Of Liability

DID Logic will not be liable to Customer or other party for punitive, special, incidental, consequential, indirect or other similar damages, including, but not limited to, damages or costs incurred as result of loss of time, loss of data, loss of profits or revenue, or loss of use of equipment or software. In addition, DID Logic is not responsible or liable for damages or costs in connection with obtaining substitute equipment or software, claims by others, inconvenience or similar costs.

General Provisions

This Agreement shall be construed and enforced in accordance with the laws of the Hong Kong, which are applicable to the construction, and enforcement of contracts between parties. If DID Logic Limited brings an action against the other party to enforce its rights under this Agreement and prevails, DID Logic Limited shall be entitled to recover its costs and expenses, including without limitation, attorney's fees and costs incurred in connection with such action, including any appeal of such action. With respect to all disputes arising out of or related to this Agreement or the transactions contemplated hereunder, the parties hereby submit to the jurisdiction of the Hong Kong SAR.


All confidential information, including, but not limited to, any business, technical, financial, and customer information, disclosed by one party to the other during negotiation or the effective term of this Agreement which is marked "Confidential", will remain the sole property of the disclosing party, and each party will keep in confidence and not use or disclose such proprietary information of the other party without express written permission of the disclosing party.

Acceptable Use Policy

DID Logic reserves the right to to strictly enforce this Policy by, without limitation, issuing warnings, suspending, or terminating Service, refusing to transmit, removing, screening, or editing Service parameters prior to delivery or actively investigating violations and prosecuting them in any court or appropriate authority. We may block access to certain parts of Service if, in our sole discretion, we are experiencing excessive billing, collection, fraud problems or other misuse of our network. We may review, report on, and disclose transaction information about your use of DID Logic system, and any relevant information transmitted by you via the DID Logic system, to the extent permitted by law, in order to comply with the law, to enforce or apply our subscriber Agreements, to protect our rights or property, or to protect other Customers from fraudulent, abusive, or unlawful use of Service.

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In-country voice service

Get connected to local Points of Presence

USA and Canada toll-free numbers

North American 8YY services to support your
call center or inbound customer service.

DID Logic offers real-time provisioning of US toll-free numbers through our online Exchange portal. We provide NPAs 888, 866, 877, 855 and 844. Custom and vanity numbers are available. Toll-free inbound service can be delivered over standard SIP trunk connection to your SIP-based PBX. If you’re already using a hosted contact center software such as Genesys or Interactive Intelligence, numbers can be pointed to your inbound queue using SIP URI.

High capacity and service redundancy

All numbers support 96 concurrent calls out of the box at no charge. There is no need to purchase additional channel capacity, and our Engineering can instantly upgrade your concurrent channel capacity. If you require support for hundreds of simultaneous inbound calls, service can be turned up instantly and can go to production within minutes. There is no cost for 8YY capacity upgrades.

We use two PoPs to route toll-free numbers in North America. DID Logic is a direct tenant of Coresite at the One Wilshire facility. US East PoP is at Telx's 60 Hudson. We peer at the NYIIX and Any2Exchange. Both facilities work in tandem and provide 100% redundancy for your operations.

In the IP leg of the call, we rely on Tier 1 transit providers to ensure minimal latency from your ISP to our media gateway IP edge.

We can also provide special reduced latency routes to reach Asia Pacific-based customers from our LAX location in California. All Asian carriers are present at One Wilshire. If you rely on outsourced call center locations and your 800 service is impacted by the sub-standard office Internet performance in the Philippines, Vietnam, Thailand or China, we can solve these issues for you by peering directly with your ISP in Los Angeles.

Enhanced routing features

Numbers can be blocked from payphone calls and restricted to a geographic area you select (US48 only, US48 + AK and HI, or all the US, Canada and the Caribbean). If your organization needs to keep the same RespOrg, we can route your toll-free numbers for you (multi-CIC) without porting them over.

Canadian toll-free numbers

There are two options to extend your toll-free 8YY number coverage into Canada:
  1. On existing US 8YY line, add the option for these toll-free numbers to work in Canada.
  2. Provision Canadian toll-free 8YY numbers that work in Canada by default.

We offer both routing options. In addition to US toll-free numbers that are Canada-enabled, we offer Canadian native toll-free numbers from Canadian national carriers. With a Canadian toll-free number, you won't have to worry about certain CLECs in Canada not having support for US toll-free numbers.

Port-in your toll-free numbers

It's easy to migrate your toll-free numbers to our Exchange platform. We support paperless LNP and make it a simple, enjoyable processes. Read more about our LNP portal solution.

UK toll-free numbers

Enterprise-grade UK 0800 service over Tier1 IP networks.

Toll-free UK numbers are available using our own direct capacity. DIDs can be acquired in bulk, in blocks of continuous numbers. We offer 0800 service to companies of all sizes, including large multinationals and enterprises.

UK toll-free numbers are offered with massive inbound channel capacity out of the box. There is no charge for inbound upgrading channel capacity, and we can easily turn-up 100 or 300 channel UK 0800 setups the same day to handle the busiest inbound call volume.

UK regulatory compliance

We can assist you with your 0800 toll-free number setup and walk your IT staff through the setup. Our experienced team of engineers has hands-on experience and can advise on issues specific to the UK telecom regulatory landscape. All the latest Office of Communications (Ofcom) rules, such as calling toll-free from mobiles, are accounted for.

Ultra-low latency and UK domestic routing

Numbers can be routed to your IP PBX or forwarded to PSTN. We offer standard SIP trunk delivery to IP PBXes such as Asterisk or 3CX. If you have a third-party hosted call center system, we can natively support SIP URI-based routing into your current call center vendor's switches. Routing is available to UK and anywhere in the world over our own high-performance, low-latency IP network.

Our switches sit directly on top of the largest UK telecommunication hubs and we fully control routing. The audio part of the call (RTP) streams from UK-based media gateways and all routing remains UK domestic. There are no third parties involved, and your voice paths won't loop through non-UK jurisdictions or low-cost commodity hosting providers.

DID Logic is a London Internet Exchange member. In addition to London Telehouse North housed equipment, we offer access through our secondary site in Wales. We are at British Telecom Stadium House 5 in Cardiff. The building is owned by the BT Group and is an actual telephone exchange. DID Logic is a direct tenant at the facility and operates its own cabinets on the 14th floor.

Port-in your UK 0800 numbers from any carrier

If you need to port-in your UK toll-free numbers, our team of certified engineers can handle the process for you. For historical and technological reasons, porting 0800 lines in the UK takes a somewhat 30+ day processing time. We can supervise the porting processes at the various Service Establishment stages that UK 0800 porting involves.

All the paperwork can be handled over the automated LNP portal. The web-based LNP tool offers the complete set of tools you need for paperless porting in the UK. Your team can e-sign the documents and control the switchover process.

Australian toll-free numbers

Wholesale 1800 and 13/1300 inbound services.

We provide toll-free (1800) and shared-cost (1300) numbers to businesses of all sizes, non-profit, educational and enterprise customers, call centers, BPO providers, traditional and emerging NGN carriers. DIDs can be acquired in bulk, in blocks of continuous numbers. Vanity, custom and Phonewords-based numbers are available. For example, 1800 TRANSIT is 1800 872 674.

Local expertise

We have intimate knowledge of the Australian telco industry. Our engineers have years of experience working with Australian carriage providers, incumbents and mobile network operators. We can help you navigate the regulatory landscape and remain in compliance with the Australian Communications and Media Authority (ACMA) rules. If you’re outside of the region and looking to provision toll-free numbers in Australia, our team will walk you through the process and will provide free test numbers to evaluate quality of service.

Direct routing from Australian IP edge

1800 and 1300 DID numbers can be delivered over standard IP connection to any location worldwide. We buy our own IP transit and peer at multiple Internet Exchanges to minimize latency during call delivery. DID Logic operates two PoPs in Australia: one in Sydney and one in Perth.

For Asia Pacific-based customers, we can eliminate traffic loops through low-cost California locations and reduce latency from high 200s to sub-50 millisecond (on a Perth-Singapore route).

AU domestic customers can expect ultra-low latency and zero jitter. We fully control the call routing and all audio (RTP) streams from Australian IP addresses.

You can also dial Australian 1800 numbers for free from anywhere over your DID Logic SIP trunk, just like you would from a local line.

Port-in your Australian 1800 and 1300 numbers from any carrier

If you need to migrate your toll-free numbers, our team of certified engineers can handle the process for you. Our web-based LNP portal offers the complete set of tools you need for paperless porting in Australia. Your team members simply e-sign the order forms and we handle the rest. DID Logic engineering will pre-build the numbers on your system to ensure completely seamless migration with zero seconds downtime. You will be able to pick time of date for your Australian 1800 numbers to cut over.

Toll-free 0800 numbers
in New Zealand

Inbound number solutions in NZ, routed to IP or PSTN anywhere.

Toll-free numbers in New Zealand start with 0800 followed by six digits. DID Logic toll-free numbers allow your customers to call you at no cost. Calls are free from any phone – fixed or mobile. We can offer ranges of 0800 numbers or vanity Word Numbers such as 0800 DIDLOGIC.

Numbers can be forwarded to your other numbers, or delivered over SIP trunk connection to your IP PBX. SIP URI or sip-register based routing to Asterisk, 3CX and other popular PBX software is available.

You can also dial to New Zealand toll-free lines in the +64800 format over our SIP trunk – just like from a local NZ line.

Optimized, low-latency 0800 routing in New Zealand and worldwide

Our switches sit directly on top of the key network PoPs in New Zealand. Unlike aggregators and resellers, we control the routing and operate our own hardware. Because all RTP (audio) part of the call streams directly from New Zealand, call quality beats non-direct reseller solutions. With true domestic routing, your customers and employees will immediately hear the difference in audio quality on New Zealand toll-free lines.

Asia Pacific expertise

For customers located outside of New Zealand, we can offer greatly improved routing without the unnecessary loops and excessive latency. Resellers tend to hide routing before the DID number hits your PBX. We can offer full transparency and reduced latency on your 0800 NZ DID trunk when routed to any destination in the US, Asia or Europe.

Because we manage and operate our own PoPs and peer with many regional and international ISPs, diversity is available in route. From Auckland, two routes are available: one to Hawaii and one to Sydney. From Sydney, three more IP paths can be chosen: one to Los Angeles, one to Hong Kong and one to Singapore via Perth. Our Engineering team can work directly with your technical staff to create the best routing scenario, based on your local ISP in many Asian and North American locations.

Port-in your New Zealand 0800 numbers from any carrier

Our team of certified LNP experts can port your New Zealand toll-free numbers from any carrier. All-electronic, paperless LNP portal is available to initial port orders. We can arrange a cutover time and supervise the NZ number migration. DID Logic will also process all paperwork on behalf of your organization.

Free trial is available for IT infrastructure managers and developers.