Lync 2013 common phones cannot sign in SIP address get's cut off short

[Anonymous]

Hi Community,

Rolling out new VVX411 and Trio 8800 and am facing a very strange issue.

Phones run on UC Software 5.6.0.17325

Basically common phones always get a random SIP address like:

53b1a3d1-17e7-4b1c-bb2f-d2238c6e6e07@mydomain.com

When trying pin authentication on either phones the log files show that the SIP address is cut short like:

53b1a3d1-17e7-4b1c-bb2f-d2238c6e6e07@mydomain.c

So the "OM" at the end is missing and that prevents the phone from signing in.

I have tried to manually shorten the SIP address through Active Directory objects and once shortened the phones sign in OK.

Has anyone come across this issue before? I feel like the SIP address is too long, the thing is it is automatically assigned by LYNC to any common pohones with the same length.

Thanks

[SteffenBaierUK]

Hello Sebastian,

welcome back to the Polycom Community.

I believe I had a case about this and the limit from Microsoft was 61 characters for the UPN name.

The internal Polycom reference for this is VOIP-126683 and VOIP-125274 .

This was previously discussed => here <=

Please ensure to provide some feedback if this reply has helped you so other users can profit from your experience.

Best Regards

Steffen Baier

Polycom Global Services

[Anonymous · Accepted solution]

Hi, my address is exactly 61 characters long and it cuts 2 off.

I have shortened my address by 2 and it started working. 

So the maximum length of 61 is therefore incorrect?