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Consult transfer to VVX phone results in no audio

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Occasional Advisor

Consult transfer to VVX phone results in no audio

We had an issue a while back where blind transfers involving external calls and VVX phones were dropping immediately. This was fixed by adding the following to our provisioning server config: call.BlindTransferSpecialInterop="1"​ 

 

We now have an issue where consult transfers result in the call being connected but no audio is heard if the target is a VVX phone. 

 

Problem Scenario:

Incoming external call (A) to VVX phone (B)

Answer on VVX phone (B) and attempt to consult transfer to another VVX phone (C)

(C) answers the call

(B) attempts to complete the transfer

(B) call disconnects as expected

The call is connected between (A) and (C) but neither hears audio

 

This scenario works fine when (C) is a HP 4120 or Polycom CX device instead of a VVX. 

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Polycom Employee & Community Manager

Re: Consult transfer to VVX phone results in no audio

Hello adbl,

It is always useful to include the currently used software version as issues experienced may already be addressed in a newer release.

This also allows yourself and others to check against current software release notes.

The above is also stated in the "Read First: Welcome to the Polycom VoIP Forum"

Therefore the Polycom VoIP FAQ contains this post here:

Question: How can I find out my SIP UC Software Version or the BootROM Version of my Phone?
Resolution: Please check here

 

The next step most likely would be to raise a Support case with Polycom via your Polycom reseller so we can analyze the data and troubleshoot this.


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

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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.

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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. 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
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