[Asterisk-Users] Cisco 7940/7960 and voicemailmain not able to press keys after a hold.

[James Sizemore]

I have noticed a problem with the Cisco 7940/7960 phones where if 
you put your voice-mail box on hold using soft keys and come back 
you can no longer navigate. I am curious if anyone else can 
duplicate this problem. Happens reliably for me with the 7940 
phones.

I use rfc2833 for DTMF.  I would think it was a Cisco bug, but 
for the fact that this did not happen with older version of 
Asterisk.