[Asterisk-Users] RTP connection broken

[Ernest W. Lessenger]

We have an Audiocodes MP-108 that keeps dropping connections to voicemail 
after exactly ten seconds. All other calls are normal, and voicemail works 
fine from SIP devices other than the gateway. The reason given for dropping 
these calls is "RTP Connection Broken." I suspect that the gateway is 
sensing the lack of audio from Voicemail and is panicking. Any suggestions?

--Ernest