[Asterisk-Users] Media Negotiation Failed

[CW_ASN - Gus]

MensajeFijate en los 'voice codecs' de los dial-peers.
  ----- Original Message ----- 
  From: Sebastian Nocetti 
  To: asterisk-users at lists.digium.com 
  Sent: Wednesday, November 12, 2003 12:41 PM
  Subject: [Asterisk-Users] Media Negotiation Failed


  Hi, I have this scenario

  Cisco 5300 (public ip. 200.47.xx.xx) <---> Asterisk (public ip: 64.76.xx.xx) <--> Cisco 3600 (public ip: 64.76.xx.xx , same network than * )

  When a calls comes in Cisco 5300, this send this calls with SIP to *, asterisk plays a welcome message and resend call to Cisco 3600 that have 4 analog lines connected... but after cisco play welcome message and when send SIP to 3600, I have this error:

  v=0
  o=root 20045 20045 IN IP4 64.76.xx.xx -> asterisk ip address
  s=session
  c=IN IP4 64.76.xx.xx -> asterisk ip address.
  t=0 0
  m=audio 15372 RTP/AVP 0 101
  a=rtpmap:0 PCMU/8000
  a=rtpmap:101 telephone-event/8000
  a=fmtp:101 0-16
   (no NAT) to 64.76.xx.xx:5060 -> 3600 ip address
  Sip read: LI>
  SIP/2.0 400 Bad Request - 'Media Negotiation Failed'
  Via: SIP/2.0/UDP 64.76.xx.xx:5060;branch=z9hG4bK31ba01da -> asterisk ip address
  From: "1143724956" <sip:1143724956 at 64.76.xx.xx>;tag=as33c45436 -> * ip address
  To: <sip:1152672000 at 64.76.xx.xx> -> 3600 ip address
  Call-ID: 28b30df021508ba32b21208459e10765 at 64.76.126.30
  Warning: 304 64.76.xx.xx:0 "Media Type(s) Unavailable" -> 3600 ip address
  CSeq: 102 INVITE

  then I have too another GW 5300, with same IOS and same config.. and with it, all  work OK!!!... I don't understand what is the problem!!...


  IT WORKS OK!!!..

  Cisco 5300 (public ip. 64.76.xx.xx) <---> Asterisk (public ip: 64.76.xx.xx) <--> Cisco 3600 (public ip: 64.76.xx.xx , same network than * )


  Some clue?....
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