[asterisk-users] Outgoing PJSIP using Kamailio

[Joshua C. Colp]

On Mon, Apr 6, 2020 at 2:06 PM Administrator <admin at tootai.net> wrote:

> Hello,
>
> We have a provider which is using Kamailio as front end. Our asterisk
> 13/chan_sip server has no problem to register and pass/receive calls
> form this provider.
>
> Now we want to move to asterisk 16/pjsip and face problem. Registration
> is OK but when we pass a call our INVITE never receive answer from the
> provider. We opened a ticket to their support but in the mean time we
> want to know if someone is using successfully a PJSIP channel against
> Kamailio.
>
> Another one: despite the fact that they use 5061 port, it's not TLS but
> UDP. Our asterisk16 has no TLS configured.
>
> We use wizard which looks like:
>
> [Provider-tootai](!)
> ;
> type = wizard
> sends_auth = yes
> sends_registrations = yes
> accepts_auth = no
> accepts_registrations = no
> endpoint/call_group = 1
> endpoint/pickup_group = 1
> endpoint/accountcode = TOOTAi
> endpoint/language = fr
> endpoint/allow = !all,ulaw,alaw,g729
> endpoint/context = incoming-Provider
> endpoint/direct_media = no
> endpoint/dtmf_mode = inband
> registration/retry_interval = 20
> registration/max_retries = 0
> registration/expiration = 3600
> registration/transport = transport-udp
> aor/max_contacts = 2
> aor/qualify_frequency = 2000
>
> [Provider](Provider-tootai)
> ;
> remote_hosts = sips.provider.eu
> endpoint/callerid = "TOOTAi" <00xx xxx xxx xxx>
> aor/contact = sip:sips.provider.eu:5061
> registration/client_uri = sips:OUR_ID at sips.provider.eu
> registration/server_uri = sips:sips.provider.eu:5061
> outbound_auth/username = OUR_ID
> outbound_auth/password = OUR_PWD
> identity/match = PROVIDER_IP
>

Your server URI For registration and calling differs in that one uses
"sips" and the other "sip" for URI scheme. Is there a particular reason
they differ? I'd also expect "sips" not to be used at all if it's strictly
UDP. You could also compare chan_sip and chan_pjsip traffic to see what the
difference is.

-- 
Joshua C. Colp
Asterisk Technical Lead
Sangoma Technologies
Check us out at www.sangoma.com and www.asterisk.org
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