[Asterisk-Users] DTMF stops working w/ Voicemail

[Daryl Jones]

Brent Franks wrote:

> I have some reports from users that occasionally DTMF will stop working in
> voicemail and they will have to exit the system to get it to work again.
> The useragents are Polycom IP 500's and I am using dtmfmode=rfc2833, with
> Ulaw codec.  This is all on an internal switched 100mb lan.
> 
> Has anyone else seen anything like this?

Confirmed...   Happens intermittently with Cisco 7960 phones for the 
past two weeks.  I haven't been able to identify what causes it to occur.