Plantronics + Polycom. Now together as Poly Logo

Auto answer page/intercom call without Alert-Info

Occasional Contributor

Auto answer page/intercom call without Alert-Info

For the VVX500 (UC software 4.0.5), is there any method to assign a ring class to an incoming call based on a SIP invite header field other than Alert-Info? I am working with a call server that provides an auto-answer indicator in both the Call-Info and Answer-Mode fields, but does not include Alert-Info.



Polycom Employee & Community Manager

Re: Auto answer page/intercom call without Alert-Info

Hello CTC,

welcome to the Polycom Community.

To my knowledge we only support the Alert-Info field. Can your SIP server not be changed to utilize the Alert-Info field?


Call-Info is used for RFC 3265 SIP Specific Event Notification framework appearance state notification.

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

The title Polycom Employee & Community Manager is a community setting and does not reflect my role. I am just a simple volunteer in the community like everybody else. My official "day" Job is 3rd Level support at Poly but I am unable to provide official support via the community.


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. If you need immediate and/or official assistance please open a service ticket through your proper support channels.
Please also ensure you always check the VoIP , Video Endpoint , Skype for Business , PSTN or RPM FAQ's
Message 2 of 3
Occasional Contributor

Re: Auto answer page/intercom call without Alert-Info

I have made some inquiries about that as well.


We're dealing with one mixed environment where the Polycom phones are the 1/3 that lack a method to auto-answer the current group pages, so I thought it would make sense to look at both sides. One provides a per-line auto-answer setting so we can set up a dedicated intercom line, and the other has a built in rule to look for "answer-after=0" in the Call-Info field, in addition to the Alert-Info rules.


Thank you, and I will provide an update for whatever solution we find.

Message 3 of 3