ULAW recorded sounds gone after upgrade

I’ve run into a strange problem.

I upgraded my ubuntu on friday, but this morning I got calls from some users claming the voice greetings I’ve recorded in ulaw stopped working.

True enough when i try to listen to them by calling the outside number, I hear the sound but it’s garbled or running very slow, bearly audable.

If I call sip to sip local it works just fine, but not when people are coming from the IAX trunk.

iax.conf:

[general]
disallow=all
allow=ulaw
;allow=gsm
allow=alaw

sip.conf:

[general]
disallow=all
allow=ulaw
;allow=gsm
allow=alaw

Nothing reports on the console:

– Accepting AUTHENTICATED call from 88.151.164.11:
> requested format = ulaw,
> requested prefs = (ulaw|gsm|alaw|ilbc),
> actual format = ulaw,
> host prefs = (ulaw|alaw),
> priority = mine
– Executing [57200312@default:1] Set(“IAX2/Voop50617-9658”, “NewCaller=22223510”) in new stack
– Executing [57200312@default:2] Set(“IAX2/Voop50617-9658”, “NewCaller=022223510”) in new stack
– Executing [57200312@default:3] Set(“IAX2/Voop50617-9658”, “CALLERID(all)=022223510”) in new stack
– Executing [57200312@default:4] GotoIfTime(“IAX2/Voop50617-9658”, “16:00-05:59,mon-fri,,?night-mode,1”) in new stack
– Goto (default,night-mode,1)
– Executing [night-mode@default:1] Answer(“IAX2/Voop50617-9658”, “”) in new stack
– IAX2/voop-trunk-9602 answered SIP/3513-083f64c0
– Executing [night-mode@default:2] Wait(“IAX2/Voop50617-9658”, “2”) in new stack
– Executing [night-mode@default:3] Playback(“IAX2/Voop50617-9658”, “ssogn”) in new stack
– <IAX2/Voop50617-9658> Playing ‘ssogn.ulaw’ (language ‘no’)
– Hungup ‘IAX2/voop-trunk-9602’

Asterisk 1.6.1.0-rc4

Any ideas?