pbx*CLI> dialplan add extension 31491,1,RetryDial(|1|3|SIP/office2|1|mg) into local replace
Extension 31491@local (1) replace by '31491,1,RetryDial,|1|3|SIP/office2|1|mg'
    -- Added extension '31491' priority 1 to local
    -- Stopped music on hold on SIP/office2-0826b310
  == Spawn extension (local, 31491, 1) exited non-zero on 'SIP/office2-0826b310'
    -- Executing [31491@local:1] RetryDial("SIP/office2-0826b310", "|1|3|SIP/office2|1|mg") in new stack
    -- Called office2
    -- Started music on hold, class 'default', on channel 'SIP/office2-0826b310'
    -- SIP/office2-08280040 is ringing
    -- Nobody picked up in 1000 ms
    -- Stopped music on hold on SIP/office2-0826b310
[Jul 11 20:14:07] WARNING[30968]: file.c:563 ast_openstream_full: File  does not exist in any format
[Jul 11 20:14:07] WARNING[30968]: file.c:813 ast_streamfile: Unable to open  (format 0x4 (ulaw)): No such file or directory
    -- Started music on hold, class 'default', on channel 'SIP/office2-0826b310'
    -- Stopped music on hold on SIP/office2-0826b310
  == Spawn extension (local, 31491, 1) exited non-zero on 'SIP/office2-0826b310'
pbx*CLI>