asterisk users - Dec 2003 - iconnect / asterisk ? calls hang up

hi 
i got iconnect to work, works pretty well now except calls sometimes (more often
than not) hang up after a couple of minutes.. heres a bit of the debuging

Record-Route: <sip:61892142222@213.137.73.178:5060;maddr=213.137.73.176>
From: sip:61892142222@natrelay.deltathree.com;tag=3281050172-73809
To: "JUSTIN XLITE" <sip:2001@61.95.68.84>;tag=as09766a78
Call-ID: 5df848b10eea268512db62e41181dc3d@61.95.68.84
CSeq: 2 BYE
User-Agent: Asterisk PBX
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER
Contact: <sip:2001@61.95.68.84>
Content-Length: 0


 to 213.137.73.146:5060
  == Spawn extension (mpa-phones, 861892142222, 2) exited non-zero on
'SIP/2001-40ae'
set_destination: Parsing <sip:2001@211.28.211.217:5060> for address/port
to send to
set_destination: set destination to 211.28.211.217, port 5060
Reliably Transmitting:
BYE sip:2001@211.28.211.217:5060 SIP/2.0
Via: SIP/2.0/UDP 61.95.68.84:5060;branch=z9hG4bK097c0033
From: <sip:861892142222@61.95.68.84>;tag=as240c55f5
To: justin <sip:2001@61.95.68.84>;tag=2602104623
Contact: <sip:861892142222@61.95.68.84>
Call-ID: D957696B-4120-4FCE-874C-166615C542C2@211.28.211.217



211.28.211.217 is me at home.. exten 2001. 61.95.68.84 is server.. and the 213
is i connect

anyone experienced  this before.. ??

thanks heaps :)

Justin

hi 
i got iconnect to work, works pretty well now except calls sometimes (more often
than not) hang up after a couple of minutes.. heres a bit of the debuging

Record-Route: <sip:61892142222@213.137.73.178:5060;maddr=213.137.73.176>
From: sip:61892142222@natrelay.deltathree.com;tag=3281050172-73809
To: "JUSTIN XLITE" <sip:2001@61.95.68.84>;tag=as09766a78
Call-ID: 5df848b10eea268512db62e41181dc3d@61.95.68.84
CSeq: 2 BYE
User-Agent: Asterisk PBX
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER
Contact: <sip:2001@61.95.68.84>
Content-Length: 0


to 213.137.73.146:5060
 == Spawn extension (mpa-phones, 861892142222, 2) exited non-zero on
'SIP/2001-40ae'
set_destination: Parsing <sip:2001@211.28.211.217:5060> for address/port
to send to
set_destination: set destination to 211.28.211.217, port 5060
Reliably Transmitting:
BYE sip:2001@211.28.211.217:5060 SIP/2.0
Via: SIP/2.0/UDP 61.95.68.84:5060;branch=z9hG4bK097c0033
From: <sip:861892142222@61.95.68.84>;tag=as240c55f5
To: justin <sip:2001@61.95.68.84>;tag=2602104623
Contact: <sip:861892142222@61.95.68.84>
Call-ID: D957696B-4120-4FCE-874C-166615C542C2@211.28.211.217



211.28.211.217 is me at home.. exten 2001. 61.95.68.84 is server.. and the 213
is i connect

anyone experienced  this before.. ??

thanks heaps :)

Justin