[Asterisk-Users] Zap - 256 format frames

[Matthew Boehm]

Any ideas on this warning? If I call this number, sometimes I get this error
and sometimes the call goes thru fine. Why would it work sometimes?

    -- Executing Goto("SIP/3044-8d49", "cytel-outgoing|915124512424|1") in
new stack
    -- Goto (cytel-outgoing,915124512424,1)
    -- Executing SetCIDNum("SIP/3044-8d49", "2814494000") in new stack
    -- Executing Dial("SIP/3044-8d49", "ZAP/g1/15124512424|60|t") in new
stack
    -- Called g1/15124512424
    -- Zap/1-1 answered SIP/3044-8d49
    -- Executing Dial("Zap/2-1", "SIP/15124512424 at RNK|60") in new stack
    -- Called 15124512424 at RNK
    -- Accepting call from '2814494000' to '5124512424' on channel 0/2,
span1
    -- Got SIP response 302 "Moved Temporarily" back from XXX.XXX.XXX.70
    -- Now forwarding Zap/2-1 to
'SIP/15124512424 at XXX.XXX.XXX.52:5060'(thanks to SIP/RNK-1050)
    -- SIP/XXX.XXX.XXX.52:5060-d8b1 is making progress passing it to Zap/2-1
Nov 22 10:59:32 WARNING[1126867776]: chan_zap.c:4159 zt_write: Cannot handle
frames in 256 format
Nov 22 10:59:32 WARNING[1126867776]: app_dial.c:358 wait_for_answer: Unable
to forward frame
  == Spawn extension (all-incomming, 5124512424, 1) exited non-zero on
'Zap/2-1'
    -- Hungup 'Zap/2-1'

sip.conf
-----------
[RNK]
<snip>
disallow=all
allow=g729

extensions.conf
----------------
exten => 5124512424,1,Dial(SIP/15124612424 at RNK,60)

Thanks,
Matthew