Once a campaign has been carrier approved and provisioned, live testing is required before a campaign is certified. Sinch will test your short code in addition to AT&T, Verizon, and T-Mobile.
Sinch will start testing once the client confirms the message responses have been configured on their end. You can let us know the short code is ready on your end by updating the status of carriers in the Sinch Customer Dashboard.
Your Sinch Account Manager can assist you to request testing if required.
Doing this will place the short code in a queue for testing with our certification experts. Please allow 24 hours after requesting for testing to start.
The testing process involves testing the initial opt-in method, as well as HELP and STOP keywords, on each of our carrier handsets. You may set up a test keyword or we can provide our list of device phone numbers for you to manually trigger the message too. This ensures that all carriers are provisioned correctly and that the carrier-approved messages are being sent correctly.
If we run into any issues while KEYWORD testing, we will first look at the issue on our end. Our internal will check to see if our testing MOs are reaching your account. If our team confirms the MOs are reaching your platform but they are not responding to the keywords, we will then leave a rejection note in the customer dashboard.
T-Mobile requires an extra step of testing on their end to ensure everything is working and compliant: (opt-in method + HELP/STOP).
T-Mobile can take between 1-3 days to complete testing. Until it is completed, T-Mobile will be listed as “Carrier Certification requested” in the Sinch Customer Dashboard.
Note: If you decide to push the initial opt-in message to our devices, it will have to be pushed again to the T-Mobile team once they are ready. They will provide an MDN giving until the end of day for the initial opt-in to be pushed to their device. They will also test HELP/STOP*.
When testing prior to a campaign being fully certified by T-Mobile, the tests will only work on whitelisted devices. Our internal test devices are whitelisted for this purpose. Sinch can whitelist a T-Mobile number for you upon request.
Before you campaign can be certified you will need to confirm that you have:
If you have any questions or concerns, please reach out to your Sinch Account Manager.
To lease a US short code, the CTIA and the US Short Code Registry now require brands and content providers to undergo vetting by providing their organization information. This information will be reviewed by Aegis Mobile, CTIA’s vetting partner, thus enhancing transparency and consumer protection.
Brands and content providers need to be registered and vetted only once, with short code leasing available post-vetting. In subsequent years, the point of contact on file must complete annual email verification.
The following information will be required:
What is the difference between a Brand and a Content Provider?
CTIA and the Short Code Registry has defined content provider as the entity that has a contractual relationship with the brand sending messages.
How about existing short codes?
Brand and content provider with short codes on auto-renewal must register their organization information and complete the new vetting process by Q1 2025. Parties will have sixty (60) days after the auto-renewal date to update the required fields.
Sinch has started collecting this information. Please contact your account manager if you have any questions.
Are vetting statuses transferable?
No, vetting statuses are not transferrable. In the event of a lease transfer, new information must be submitted, and entities will need to undergo vetting again.
Vetting Process Overview
Upon submission of the brand information, the vetting party will review the following triage criteria:
Once triaged criteria are met, the Point of Contact (POC) on file will receive an email from Aegis Mobile (certify@aegismobile.com). This email will contain a PIN and instructions on how to complete the registration. Be sure to check your junk mail folder.
The PIN is valid for 7 days. A reminder email will be sent 48 hours before the PIN expires. If the initial PIN expires, Aegis Mobile will issue a second and final PIN.
While the POCs completes the PIN verification, the vetting party will continue to review the remaining brand details at the same time.
Vetting Statuses:
Tips to a Successful Vetting Results
For entities with international presence, please specify the Tax ID and the country of registration. For entities in Canada, please provide the first 9 numeric digits of the Business Number (BN-9) when providing brand client details.
US Tax ID, company name and address can be validated using the following resources:
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Alaska |
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Arizona |
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Arkansas |
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California |
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Colorado |
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Connecticut |
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Delaware |
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District of Columbia |
District of Columbia Business Filings Search (login required) |
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Indiana |
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Iowa |
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Montana |
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Nebraska |
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New Hampshire |
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New Mexico |
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New York |
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North Carolina |
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Ohio |
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Oklahoma |
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Oregon |
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Puerto Rico |
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Rhode Island |
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Vermont |
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Washington |
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Wyoming |
Canadian Tax ID, company name and address can be validated using the following resources:
Europe, Eastern Europe, North Atlantic, Middle East, South America, and APAC Tax ID, company name and address can be validated using the following resources:
For more information, please check out CTIA and The Short Code Registry's FAQs page or their summary below: