[Freeswitch-dev] FreeSwitch - SIP RFC 2543

Tech Micron techmicroncom at yahoo.com
Mon Aug 16 09:54:32 PDT 2010

Hi everyone,

I have a SIP device that is working with RFC 2543. I  am trying to send call 
using FreeSwitch (Sofia-SIP), but none of my calls are going  through.
I have traced the debug on SOFIA and it returned an error as below. Can anyone 
help me to solve the problem? any hints?

recv 660 bytes from udp/[]:5060 at 18:45:21.239029:
   INVITE sip:1000 at SIP/2.0
   v: SIP/2.0/UDP
   To: sip:1000 at <sip:1000 at>
   From: john odu 
<sip:26679778 at>;tag=4c5c58410003ac2076f6302c11fc3b7b
   i: 41585c4c2ba3030035e697f0a586dbaa at
   CSeq: 1  INVITE
   m: john odu <sip:26679778 at>
   Supported: com.lilo.conferencing, com.lilo.mux
   User-Agent: liloSipMCU/
   c: application/sdp
   l: 212
   o=mcu 0 0 IN IP4
   s=sip:26679778 at
   c=IN IP4
   t=0 0
   m=audio 2006 RTP/AVP 0 111
   a=rtpmap:0 PCMU/8000
   a=rtpmap:111 telephone-event/8000
tport_deliver(0x97a1fb0): msg 0xb762bef8 (660 bytes) from 
udp/ next=(nil)
nta: received INVITE sip:1000 at SIP/2.0 (CSeq 1)
nta: INVITE has bad To  header
nta: INVITE (1) is Bad To Header
tport_tsend(0x97a1fb0) tpn = UDP/
tport_resolve addrinfo =
tport_by_addrinfo(0x97a1fb0): not found by name UDP/
tport_vsend(0x97a1fb0): 239 bytes of 239 to udp/
tport_vsend returned 239
send 239 bytes to udp/[]:5060 at 18:45:21.239369:
   SIP/2.0 400 Bad To Header
   Via: SIP/2.0/UDP
   From: john odu 
<sip:26679778 at>;tag=4c5c58410003ac2076f6302c11fc3b7b
   Call-ID: 41585c4c2ba3030035e697f0a586dbaa at
   CSeq: 1 INVITE
   Content-Length: 0

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