CSCvi80780 Cisco Jabber 12 on iPhone - unable to sign in if domain name starts with numeric character

[Andrei Fedorov]

Hello everyone.

After fresh install of Cisco Jabber 12 from the Appstore our users unable to sign in into jabber from MRA and internal network - error message says "Format not correct":

If the leading digit in the service domain name removed - jabber tries to communicate with the server without issues:

Our service domain name starts with single digit, features such MRA and autodiscover for jabber clients worked perfectly fine before 12.x release.

Any thoughts on this issue?

[Andrei Fedorov · Accepted solution]

Quick update for everyone who also faced this issue: it's known bug (CSCvi80780, CSCvi83272) and the only available workaround at this time - sign in into jabber using configuration URL.