I've just spent over an hour at the Cisco web-site trying to lodge a query re a problem I'm having with my SPA112. After finding out what to do and filling in the registration form I got the "Registration Application is unable to process the registration request".

Is there anyone out there with an SPA112 that is able to get incoming DTMF tones played back for as long as the number on the keypad is pressed? I'm using the 1.2.0 beta firmware and have tried a variety of configurations and can't get anything sensible to work.

1) Using out-of-band DTMF with AVT as the protocol the outgoing DTMF tones last as long as the key is pressed. Great. However, incoming DTMF tones are played as soon as the number is pressed but only for a very short duration. For the rest of the time the number is pressed the audio pathway seems to be muted.

2) Using In Band DTMF with G711a, the outgoing DTMF tones are not right. There is a click and then the DTMF tone is played for a short period of time once the number is released. The audio pathway appears to be muted for the duration that the number is pressed. Incoming DTMF seems to have the same behavior as using AVT.

3) Using out of band with INFO as the protocol is completely poked (although I'm not sure if Kiwilink support this protocol completely). Outgoing plays the DTMF for much longer than the number is pressed and then plays the number again afterwards for a short blip. Incoming seems to play the DTMF tone for a short period once the number is released.

Is DTMF support for the SPA112 really this poked even with the latest 1.2.0 beta? Or am I possibly missing some configuration option that will fix this behavior?

I have noticed that there is a known issue with the 1.1.0 release in that the DTMF Playback Length setting doesn't do anything. I've played around with different values for that and it doesn't seem that anything has changed with the 1.2.0 beta that I'm using.