Important Differences between SIP 3.2.5 or previous to UCS 3.3.x or 4.0.0:
Prior to UC Software the Phone always needed to load a sip.cfg and a phone1.cfg matching the SIP Release that was currently installed on the Phone via the 000000000000.cfg or <mac>.cfg.
Parameters like the Corporate Directory for example need to be activated in addition to a Productivity Suite license depending on the Phone Model and/or Software Version.
The activation in UCS 3.3.0 or newer works via:
< feature feature.corporateDirectory.enabled="1/>
The activation in SIP 3.2.x or previous works via:
<feature feature.19.name="corporate-directory" feature.19.enabled="1"/>
Above is a common mistake to be made when configuring phones.
Another Example is KEY Programming
UCS 3.3.x and later:
SIP 3.2.5 or earlier:
If official support is required please check how to phone or open a case here
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Notice: This community forum is not an official Poly support resource, thus responses from Poly employees, partners, and customers alike are best-effort in attempts to share learned knowledge.
Please also ensure you always check the VoIP , Video Endpoint , Microsoft Voice , PSTN or other FAQ's in the different sections