Occasional Contributor
Posts: 3

Unable to initiate a Webex call from my standalone RPG500 possibly due to DTMF Method?



I am experiencing issues with the Cisco Webex platform that we use for VMRs, I'm having an issue where my standalone RPG500 systems are unable to initiate a meeting.  If a meeting is already underway (eg started via a PC endpoint) I am able to join the call no problem.


According to Cisco support, it may be due to a DTMF method being used by the Polycom unit.


Firstly, how do I determine which DTMF Method is being used and secondly, can I change it to a format supported by Webex?


Apparently Cisco webex supports - "H.323 standards-based video endpoints which support DTMF via H.245 UserInputIndication method "DTMF" (basicString, generalString, iA5String, hookflash, and any other methods are unsupported)."


Any help would be appreciated.



Polycom Employee & Community Manager
Posts: 14,015

Re: Unable to initiate a Webex call from my standalone RPG500 possibly due to DTMF Method?

Hello me at work


welcome to the Polycom Community.

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

This also allows yourself and others to check against current software release notes, Administrator Guides or FAQ post’s.

The above is also stated in the "Read First"

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

Please be aware:

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Questions posted here do not follow Polycom’s SLA guidelines.
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The above is necessary in order to track issue internally within Polycom.

You are welcome to post more questions or configuration or logs for other community members to look at but if your issue requires a fix via Polycom you must go via the official support structure.

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Occasional Contributor
Posts: 3

Re: Unable to initiate a Webex call from my standalone RPG500 possibly due to DTMF Method?

Sorry my current software Release - 6.1.0-310348.