The telephone entry field is not disabled when telephone-to-account linkage is.

[RokeJulianLockhart]

Steps to reproduce

1. Visit https://chat.fedoraproject.org/#/home.

2. Select mx_UserMenu_userAvatar.

3. Select mx_UserMenu_iconSettings.

4. Navigate to "Phone number":

   <input type="text" label="Phone Number" autocomplete="tel-national" placeholder="Phone Number" id="mx_Field_17" value="" style="">
   

5. Select +44.

6. Enter 7840875616.

Outcome

What did you expect?

xor:

1. The telephone number should be accepted.
2. The entry form for a telephone number should be disabled or hidden.

What happened instead?

As @hoamer rather incomprehensibly reports at matrix-org/synapse/issues/4630, the user sees:

MatrixError: [403] Account phone numbers are not authorized on this server

Operating system

cpe:/o:fedoraproject:fedora:41

Browser information

firefox-135.0.1-1.fc41.x86_64

URL for webapp

chat.fedoraproject.org/#/home:~:text=Sign%20out-,Personal%20info,-Email%20addresses

Application version

Fedora Chat version: 1.11.92
Crypto version: Rust SDK 0.9.0 (5de53c7), Vodozemac 0.8.1

Homeserver

fedora.im

Will you send logs?

Yes

[t3chguy]

I don't see a Matrix API specific for MSISDN input. Only one for MSISDN+Email. So the client has no way of knowing it is disabled without you trying with a valid phone number which will receive a text message if it isn't disabled.

https://spec.matrix.org/v1.13/client-server-api/#m3pid_changes-capability