SIPP，发送多个Via

Question

我正在尝试从SIPP发送多个Via：

Via: SIP/2.0/[transport] [local_ip]:[local_port];branch=[branch]
Via:  SIP/2.0/[transport] [local_ip]:5080;branch=[branch] 

然而，这种方法不起作用。实现这一目标的正确语法是什么？

Answer 1

我完全按照你说的做了，它起作用了。也许你的问题不在这个特定的部分。在我的测试中，我发送了这样的消息：

  INVITE sip:[service]@[remote_ip]:[remote_port] SIP/2.0
  Via: SIP/2.0/[transport] [local_ip]:[local_port];branch=[branch]
  Via:  SIP/2.0/[transport] [local_ip]:5080;branch=[branch]
  From: sipp <sip:sipp@[local_ip]:[local_port]>;tag=[call_number]
  To: sut <sip:[service]@[remote_ip]:[remote_port]>
  Call-ID: [call_id]
  CSeq: 1 INVITE
  Contact: sip:sipp@[local_ip]:[local_port]
  Max-Forwards: 70
  Subject: Performance Test
  Content-Type: application/sdp
  Content-Length: [len]

  v=0
  o=user1 53655765 2353687637 IN IP[local_ip_type] [local_ip]
  s=-
  c=IN IP[media_ip_type] [media_ip]
  t=0 0
  m=audio [media_port] RTP/AVP 0
  a=rtpmap:0 PCMU/8000