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VVX600 Lync 2013 Firmware 5.0.1.4068 - Blind Tranfer Issue

Occasional Contributor

VVX600 Lync 2013 Firmware 5.0.1.4068 - Blind Tranfer Issue

Hello,

 

Setting up several VVX 600 phones which are working fine with the exception of blind transfers from internal extension to internal extension.

 

Blind transfer of an external call works normally, assisted transfers work as well.

 

Example: EXT 1 calls EXT 2, EXT2 blind transfers EXT1 to EXT3 it will immediately get "Transfer Failed"

 

Sip trace shows: ms-diagnostics: 1020;reason="Identity of the referrer could not be verified with the ms-identity parameter";ErrorType="Invalid signature

 

The same example above using IP560 phones works every time.

 

Anyone have a clue as to why this is happening?

Message 1 of 5
4 REPLIES 4
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Occasional Contributor

Re: VVX600 Lync 2013 Firmware 5.0.1.4068 - Blind Tranfer Issue

Did some testing and this works fine if I downgrade firmware to 5.0.0.7250. When I re-upgrade to 5.0.1.4068 the issue reappears.

Message 2 of 5
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Polycom Employee & Community Manager

Re: VVX600 Lync 2013 Firmware 5.0.1.4068 - Blind Tranfer Issue

Hello kest874,

welcome to the Polycom Community.

In theory a Blind Transfer is a violation of the RFC:

 

 A UAC MUST NOT send an INVITE with a Replaces header field that attempts to replace an early dialog which was not originated by the target of the INVITE with a Replaces header field.

 

Is the extension you are dialing a phone or a response group for example?

 

The SPIP 560 mentioned earlier is most likely either running UCS 4.0.x or UCS 4.1.0 and changes / enhancements have been made since then.

 

You could try:

 

voIpProt.SIP.allowTransferOnProceeding="1"

 

I would suggest you bring this to the attention of your Polycom reseller and/or Polycom support as troubleshooting this is outisde the scope of the community.

 

 

Please be aware of the following when utilizing UCS 4.1.0 or later:

The use of Polycom UC Software versions 4.1.X (“Software”) requires the purchase of a separate Software license for every device that will use the Software in a Lync environment. You may not install, access, or use the Software in a Lync environment on more devices than are listed on your license until additional licenses have been purchased and authorized by Polycom. These licenses should be purchased from the same company from which you purchased the devices. You may operate devices against a Lync server for trial purposes for up to 30 days without purchasing a license. Use of the Software is subject to the terms and conditions of the End User License Agreement.

Polycom reserves the right to audit your deployment to verify that you have sufficient licenses to match the number of devices being used.


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
Message 3 of 5
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Occasional Contributor

Re: VVX600 Lync 2013 Firmware 5.0.1.4068 - Blind Tranfer Issue

In this case it's phone to phone to phone.  Issue doesn't exist on 5.0.0.7250, when using the same vvx600, only when it's updated to 5.0.1.4068.

 

voIpProt.SIP.allowTransferOnProceeding="1" made no difference.  This looks to be a bug.

Message 4 of 5
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Polycom Employee & Community Manager

Re: VVX600 Lync 2013 Firmware 5.0.1.4068 - Blind Tranfer Issue

Hello kest874,

as originally already advised I would suggest you bring this to the attention of your Polycom reseller and/or Polycom support as troubleshooting this is outside the scope of the community.

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 5 of 5