[cisco-voip] Problem with Cisco Ata 186 v3.2

[Dana Turcanu]

Hello,

   I have a problem with tow Cisco ATA 186 both having
version v3.2. When I try to make a call on my side I
hear that the phone is ringing 3 times and then the
call is disconnected. On the other side the telephone
is ringing  10 times. I belive that the problem is
when one Cisco sends a PRACK packet and and it receive
"420 Bad request" from de sip server. Then the call is
disconnected with error "504 Gateway Time-out". 

050620|11:48:29 PRACK
sip:0332yyyy at domain.com;user=phone SIP/2.0^M
050620|11:48:29 Via: SIP/2.0/UDP
ip_ata_1:5060;branch=z9hG4bK2b0f7845ea7a8edb^M
050620|11:48:29 From:
<sip:332xxxx at domain.com;user=phone>;tag=2064987569^M
050620|11:48:29 To:
<sip:0332yyyy at domain.com;user=phone>;tag=811613285^M
050620|11:48:29 Call-ID: 2133411222 at ip_ata_1^M
050620|11:48:29 CSeq: 3 PRACK^M
050620|11:48:29 RAck: 1 2 INVITE^M
050620|11:48:29 User-Agent: Cisco ATA 186  v3.2.0
atasip (041111A)^M
050620|11:48:29 Proxy-Authorization: Digest
username="332xxxx",realm="domain.com",nonce="42b685bce9ba0d6ad2d48520a07d2c7da5d906a1",uri="sip:0332yyyy at domain.com"


050620|11:48:29 SIP/2.0 400 Bad request
050620|11:48:29 Via: SIP/2.0/UDP
ip_ata_1:5060;branch=z9hG4bK2b0f7845ea7a8edb;rport=5060;received=ip_ata_1_nat^M
050620|11:48:29 From:
<sip:332xxxx at domain.com;user=phone>;tag=2064987569^M
050620|11:48:29 To:
<sip:0332yyyy at domain.com;user=phone>;tag=811613285^M
050620|11:48:29 Call-ID: 2133411222 at ip_ata_1^M
050620|11:48:29 CSeq: 3 PRACK^M



050620|11:48:43 SIP/2.0 504 Gateway Time-out^M
050620|11:48:43 Via: SIP/2.0/UDP
ip_ata_1:5060;rport=5060;received=ip_ata_1_nat;branch=z9hG4bKf33e54a2a402e527^M
050620|11:48:43 From:
<sip:332xxxx at domain.com;user=phone>;tag=2064987569^M
050620|11:48:43 To:
<sip:0332yyyy at domain.com;user=phone>;tag=811613285^M
050620|11:48:43 Call-ID: 2133411222 at ip_ata_1^M
050620|11:48:43 CSeq: 2 INVITE^M
050620|11:48:43 Server: Cisco ATA 186  v3.2.0 atasip
(041111A)^M
050620|11:48:43 Allow: ACK, BYE, CANCEL, INVITE,
NOTIFY, OPTIONS, REFER, REGISTER, PRACK, UPDATE^M
050620|11:48:43 Content-Length: 0^M



    Can someone tell my if this is the problem and
what
can I do to solve it? This problem apears only in
version 3.2.

 Thanks.

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