Hello,

--- Andreas Granig andreas.granig@inode.info wrote:

Dana Turcanu wrote:

...

Is PRACK method supported in ser? When an

equipment

...

sends a PRACK the server responds with "400 Bad Request" and the call is disconnected.

Are you sure the "400" comes from SER and not from the other endpoint? Do you allow routing of PRACKs in your SER-Config?

I logged the call from the tow Cisco ATA 186. The calling ata is sending PRACK and the answer is comming from the server:

050620|11:48:29 [0:0]Tx Msg to ip_sip_server:5060 050620|11:48:29 050620|11:48:29 PRACK sip:0332yyyy@domain.com;user=phone SIP/2.0 050620|11:48:29 Via: SIP/2.0/UDP ip_ata_1:5060;branch=z9hG4bK2b0f7845ea7a8edb 050620|11:48:29 From: sip:332xxxx@domain.com;user=phone;tag=2064987569 050620|11:48:29 To: sip:0332yyyy@domain.com;user=phone;tag=811613285 050620|11:48:29 Call-ID: 2133411222@ip_ata_1 050620|11:48:29 CSeq: 3 PRACK 050620|11:48:29 RAck: 1 2 INVITE 050620|11:48:29 User-Agent: Cisco ATA 186 v3.2.0 atasip (041111A)

050620|11:48:29 [0]Rx Msg from ip_sip_server:5060 050620|11:48:29 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 050620|11:48:29 From: sip:332xxxx@domain.com;user=phone;tag=2064987569 050620|11:48:29 To: sip:0332yyyy@domain.com;user=phone;tag=811613285 050620|11:48:29 Call-ID: 2133411222@ip_ata_1 050620|11:48:29 CSeq: 3 PRACK

In the log from the called ATA there is no PRACK or 400 error. Can you tell me what do I have to change in ser configuration in order to allow routing of PRACKs?

Thanks.

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