I have a client that uses Polycom CX500 and CX600 phones with Lync Server 2010. I have had feedback that when they have called an auto attendant that requests a number selection (for example "press 2 for sales"), it often doesn't register that they have pressed a number. Similarly, when setting up a conference with a remote party that requires dialling a code - often the conference fails because numbers dialled don't register.
The phones are running firmware version 4.0.7577.4372.
Is this a known issue with the CX500 / CX600 phones or something that anyone has experienced before? Any workarounds appreciated.
Re: CX600 - called number not registering key press
welcome to the Polycom Community.
The phones do not actually send any DTMF tones, it just tells the other end or the gateway to send the tones if a key is pressed.
This seems to be an issue in your Gateway that either sends SIP info or the wrong DTMF payload.
Please liaise with your gateway provider or Microsoft.
Please ensure to provide some feedback if this reply has helped you so other users can profit from your experience.
Polycom Global Services
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