Can't Add phone number to Azure communication services

Question

Can't Add phone number to Azure communication services

Wells, Carlos 0

Can't Add phone number to Azure communication services as it is greyed out.

Golla Venkata Pavani 265 Reputation points Microsoft External Staff Moderator

2025-12-12T19:56:53.06+00:00
Hii @Wells, Carlos,

Thank you for reaching out to us regarding the issue. You are experiencing a situation where the option to add a phone number in Azure Communication Services is greyed out.

Below are the most common reasons:

You must use a paid Azure subscription with a supported billing address and You must have one of the following roles(Ex: Owner, contributor etc)on the subscription, or the option remains greyed out.

PSTN/SMS capability is not yet enabled on your subscription

Even if the subscription is paid, ACS requires explicit PSTN access enablement.

Sometimes when converting from trial > paid, PSTN activation lags.

Without PSTN approval, phone number acquisition stays disabled.

If the Microsoft.Communication resource is stuck in “Registering,” phone number provisioning may fail.

Phone Numbers are not available in your selected region

Azure Communication Services phone numbers are only available in specific countries/regions. If your ACS resource is deployed in a region that does not support phone numbers, the “Add” button will be disabled.

Reference:
https://quic.hkg1.meaqua.org/en-us/azure/communication-services/concepts/telephony/plan-solution
https://quic.hkg1.meaqua.org/en-us/azure/communication-services/
Kindly let us know if the above comment helps or you need further assistance on this issue.

Please "upvote" if the information helped you. This will help us and others in the community as well.
Wells, Carlos 0 Reputation points

2025-12-12T20:04:53.04+00:00

I have a Microsoft Azure Sponsorship subscription that provides credits but also have my credit card on file for anything over the credits. The billing address and resources is in the US.

1 answer

Your answer

Golla Venkata Pavani 265 Reputation points Microsoft External Staff Moderator

2025-12-12T19:56:53.06+00:00

Hii @Wells, Carlos,

Thank you for reaching out to us regarding the issue. You are experiencing a situation where the option to add a phone number in Azure Communication Services is greyed out.

Below are the most common reasons:

You must use a paid Azure subscription with a supported billing address and You must have one of the following roles(Ex: Owner, contributor etc)on the subscription, or the option remains greyed out.

PSTN/SMS capability is not yet enabled on your subscription

Even if the subscription is paid, ACS requires explicit PSTN access enablement.

Sometimes when converting from trial > paid, PSTN activation lags.

Without PSTN approval, phone number acquisition stays disabled.

If the Microsoft.Communication resource is stuck in “Registering,” phone number provisioning may fail.

Phone Numbers are not available in your selected region

Azure Communication Services phone numbers are only available in specific countries/regions. If your ACS resource is deployed in a region that does not support phone numbers, the “Add” button will be disabled.

Reference:
https://quic.hkg1.meaqua.org/en-us/azure/communication-services/concepts/telephony/plan-solution
https://quic.hkg1.meaqua.org/en-us/azure/communication-services/
Kindly let us know if the above comment helps or you need further assistance on this issue.

Please "upvote" if the information helped you. This will help us and others in the community as well.
Wells, Carlos 0 Reputation points

2025-12-12T20:04:53.04+00:00

I have a Microsoft Azure Sponsorship subscription that provides credits but also have my credit card on file for anything over the credits. The billing address and resources is in the US.

Answer 1

If the option to add a phone number in Azure Communication Services is greyed out, it could be due to several reasons:

Subscription Requirements: Ensure that your Azure subscription meets the geographic and subscription requirements for acquiring phone numbers. If your subscription is not eligible, the option may be disabled.
Resource Configuration: Verify that you have an active Communication Services resource set up correctly. If the resource is not configured properly, it may prevent you from adding phone numbers.
Service Limits: There are limits on the number of phone numbers you can purchase. If you have reached your limit, the option may be greyed out. You can check your current limits and request an increase if necessary.
Billing Issues: Ensure that your billing information is up to date. Sometimes, issues with billing can restrict certain functionalities.
Region Availability: The availability of phone numbers can vary by region. Make sure that the phone number you are trying to add is available in your selected region.

If you've checked all these factors and still cannot add a phone number, consider reaching out to Azure Support for further assistance.

References:

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Can't Add phone number to Azure communication services

1 answer

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