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Split soft key missing

Occasional Contributor

Split soft key missing



I have a set of VVX phones having a weird issue when making three way calls. This is happening on VVX400 and VVX600 devices. WHen perforing a three way conference call, once the originating user dials the third party, a soft key for split shows up while ringing. Once the call is answeredand the conference button is pressed again to merge the three callers, the split key is gone. There is no longer an option to split the call, as there should be. Any thoughts?


My lab phone I am testing with:


Phone Information
Phone Model VVX 600
Part Number 3111-44600-001 Rev:A
IP Mode IPv4
UC Software Version
Updater Version




Robert G

Message 1 of 2
Polycom Employee & Community Manager

Re: Split soft key missing

Hello Robert G,

welcome to the Polycom Community.

Judging by your username I assume you are working for our partner.


In this case most likely we do no control the conference but rather REFER the call to the SIP server in question and the conference is held there.


I would suggest you check the signaling and if this ever worked before raise a service ticket.

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


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