On Jan 8, 2009, at 9:32 AM, Helmut Kuper wrote:

  INFO sip:mod_sofia@85.16.246.6:5060;transport=udp SIP/2.0
  Via: SIP/2.0/UDP 85.16.245.220:1024;branch=z9hG4bK-0a38f681korf;rport
  From: "HK@FreeSWITCH" <sip:2709@85.16.246.6>;tag=v0fmpqh4nz
  To: <sip:xxxxxxxx@xxxxxxx;user=phone>;tag=m0NcZ8BDZ8pcD
  Call-ID: 3c26a924030f-p23y096nom3i
  CSeq: 3 INFO
  Max-Forwards: 70
  Contact: <sip:2709@85.16.245.220:1024;line=3tzvc1jp>;reg-id=1
  User-Agent: snom370/7.3.12
  Content-Type: application/dtmf-relay
  Content-Length: 27

  Signal=*
  Duration=160