Сделал как в примере, выдает что занят
Executing [1314@outcall:1] Dial("SIP/1701-0000007c", "OOH323/1314@TDA,,t&m") in new stack
-- Called OOH323/1314@TDA
-- Started music on hold, class 'default', on SIP/1701-0000007c
== Everyone is busy/congested at this time (1:0/0/1)
-- Stopped music on hold ...