IAX2 to ZAP route, ss-noservice

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Im having problems routing call from (trixbox 1) through IAX2 trunk to my Digium analog card (trixbox 2).

calling sip phones on trixbox2 is working, users on trixbox2 can dail out on the analog card.
can anyone help me solve this one.

-- Accepting AUTHENTICATED call from 1.1.1.1:
> requested format = ulaw,
> requested prefs = (ulaw|alaw|gsm),
> actual format = ulaw,
> host prefs = (ulaw|alaw|gsm),
> priority = mine
-- Executing [97969594@from-trunk:1] Set("IAX2/TX1-user-2028", "__FROM_DID=97969594") in new stack
-- Executing [97969594@from-trunk:2] NoOp("IAX2/TX1-user-2028", "Received an unknown call with DID set to 97969594") in new stack
-- Executing [97969594@from-trunk:3] Goto("IAX2/TX1-user-2028", "s|a2") in new stack
-- Goto (from-trunk,s,2)
-- Executing [s@from-trunk:2] Answer("IAX2/TX1-user-2028", "") in new stack
-- Executing [s@from-trunk:3] Wait("IAX2/TX1-user-2028", "2") in new stack
-- Executing [s@from-trunk:4] Playback("IAX2/TX1-user-2028", "ss-noservice") in new stack
-- Playing 'ss-noservice' (language 'en')
-- Executing [s@from-trunk:5] SayAlpha("IAX2/TX1-user-2028", "97969594") in new stack
-- Playing 'digits/9' (language 'en')
-- Playing 'digits/7' (language 'en')
-- Playing 'digits/9' (language 'en')
-- Playing 'digits/6' (language 'en')
-- Playing 'digits/9' (language 'en')
-- Playing 'digits/5' (language 'en')
-- Playing 'digits/9' (language 'en')
-- Playing 'digits/4' (language 'en')
-- Executing [s@from-trunk:6] Hangup("IAX2/TX1-user-2028", "") in new stack
== Spawn extension (from-trunk, s, 6) exited non-zero on 'IAX2/TX1-user-2028'
-- Executing [h@from-trunk:1] Hangup("IAX2/TX1-user-2028", "") in new stack
== Spawn extension (from-trunk, h, 1) exited non-zero on 'IAX2/TX1-user-2028'
-- Hungup 'IAX2/TX1-user-2028'