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- Lync 2013 common phones cannot sign in SIP address get's cut...

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09-21-2017 06:57 PM
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
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Accepted Solutions

09-23-2017 03:55 AM
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?
09-23-2017 03:45 AM
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
Notice: This community forum is not an official HP Poly support resource, thus responses from HP Poly employees, partners, and customers alike are best-effort in attempts to share learned knowledge. If you need immediate and/or official assistance please open a service ticket through your support channels.
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