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Sip IP 6000 First call fails, subsequent calls ok

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Sip IP 6000 First call fails, subsequent calls ok

Hardware Avaya Session Manager 6.0, Avaya Aura CM 6.0.

IP6000 version

Phone is in a meeting room. After a period of time or first external outbound call of the day the call will fail with 404 not found (no route available) and 401 unauthorised register 403 authorisation failure.

Subsequent calls are ok.

Could this be a power saving setting or a keep alive timer on the IP6000?

Any advice welcome.

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Polycom Employee & Community Manager

Re: Sip IP 6000 First call fails, subsequent calls ok

Hello atwebb,

welcome to the Polycom Community.

The first step should be to use a currently support software version.


This is at present 4.0.11


Oct 7, 2011 Question: How can I setup my Phone / Provisioning / Download / Upgrade / Update / Downgrade Software?
Resolution: Please check => here <=


Please upgrade and re-test.

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 2