Может логи помогут:
== Parsing '/etc/asterisk/asterisk.conf': == Found
Connected to Asterisk 1.6.2.19 currently running on voip (pid = 10878)
Verbosity was 3 and is now 9
== Using SIP RTP TOS bits 184
== Using SIP RTP CoS mark 5
-- Executing [131@from-internal:1] Macro("SIP/1011-00000000", "user ...