[Asterisk-Users] Media Negotiation Failed

[Sebastian Nocetti]

Title: Mensaje

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:[EMAIL PROTECTED]>;tag=as33c45436 -> * ip address
To: <sip:[EMAIL PROTECTED]> -> 3600 ip address
Call-ID: [EMAIL PROTECTED]
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?....