Le 15/01/2020 à 19:50, C.Maj a écrit :
On 2020-01-15 11:24, Administrator wrote:
8<'s
One of the provider took a pcap and told us that expiration was set to 0
that's why they don't accept the registration. We took a pcap on our
side when SIP packet goes out of our server and we see that the
expiration parameter is setted to 3600 !
Howdy,
Maybe the clipping of your SIP packet is occurring on another provider's
(faulty) node somewhere in between your dualing pcaps at the endpoints ?
No.tcpdump -nqt -s 0 -i enp0s31f6 -A "dst xxx.yyy.78.36 and dst port
5060" where xxx.yyy.78.36 is the provider Kamailio IP
Capture being:
IP zzz.xyz.174.138.58738 > xxx.yyy.78.36.5060: UDP, length 570
E..V.T@.?...X....2N$.r...B..REGISTER sip:sip.myprovider.net SIP/2.0
Via: SIP/2.0/UDP
zzz.xyz.174.138:5060;rport;branch=z9hG4bKPj673a37a2-da52-4f8f-b460-17a93005bc98
From:
<sip:123...@sip.myprovider.net>;tag=d0be9b76-6363-4ce8-b747-7d75f222eef7
To: <sip:123...@sip.myprovider.net>
Call-ID: e906c156-a23f-4cff-b099-43c61a4447c5
CSeq: 47982 REGISTER
Contact: <sip:123...@zzz.xyz.174.138:5060>
Expires: 3600
Allow: OPTIONS, REGISTER, SUBSCRIBE, NOTIFY, PUBLISH, INVITE, ACK, BYE,
CANCEL, UPDATE, PRACK, MESSAGE, REFER
Max-Forwards: 70
User-Agent: TOOTAiAudio
Content-Length: 0
Please notice the
E..V.T@.?...X....2N$.r...B..
in front of REGISTER, could this create the problem ?
As for what you can control, first, you might try reducing the
expiration from 3600 to 999, or maybe something in the 30-60 range is
better for you. If that works, then raise it from there, but I think an
hour is more than enough.
We tried with 99, 60, 986, without setting expiration leting Asterisk
using his default value, no changes :(
Or, change network paths; by adding new outbound SIP connection to the
provider from alternate port and/or IP on the PBX/firewall, use VPN, etc.
Not a solution, to risky.
--
Daniel
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