[asterisk-users] Mobile answer machine cut off

Julian Lyndon-Smith asterisk at dotr.com
Sat Aug 21 17:38:02 CDT 2010

We are having some strange issue where a call from asterisk dials  a
mobile number. If the number answers, we put the call through to an
agent SIP phone. All works fine.

If, however, the call goes straight through to the mobiles voicemail
service *and* the agent phone is a Cisco 79xx, then the call is
dropped (from the mobile end) about 1 second into the call. If the SIP
phone is an Aastra9133i, then there is no problem.

Has anyone seen anything like this ?



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