Hello,
should I open a ticket in Jira (issue type: improvement?) if I'd like to have this implemented in future versions?
BR,
Sebastian
It may be possible with code to just always add a contact, not sure there is any reason not to, just isn’t typically necessary so it wasn’t there.
On Sep 12, 2018, at 8:17 AM, Sebastian Zenzerović <sebastian.zenzerovic@inet.hr> wrote:
Hello,
is it possible to add (configuration option/variable?) Contact header to outgoing gateway ping messages sent by Freeswitch?
Remote SIP peer is answering "403 forbidden" as there is no Contact header present in SIP OPTIONS.
Not a big deal since FS sees the peer as available/UP anyway but could be a interoperability enhancement between FS and Microsoft Direct routing service (https://aka.ms/dr/).
Here are the requirements:
• Must: When placing calls to the Direct Routing interface, the 'CONTACT' header must have the SBC FQDN in the URI hostname
• Syntax: Contact: <phone number>@<FQDN of the SBC>:<SBC Port>;<transport type>
• If the parameter is not configured correctly, OPTIONS are rejected with a '403 Forbidden' message
Freeswitch log:
OPTIONS sip:sip-du-a-euno.pstnhub.microsoft.com;transport=tls SIP/2.0
Via: SIP/2.0/TLS x.x.x.x;branch=z9hG4bKvjX0rU7K5QtKS
Max-Forwards: 70
From: <sip:sbc.xxx.xx>;tag=0aB5jm3SF07ve
To: <sip:sbc.xxx.xx>
Call-ID: 101b723c-3113-1237-6092-00155d000d46
CSeq: 128016309 OPTIONS
User-Agent: FreeSWITCH-mod_sofia/1.8.1-2-4f54cff36a~64bit
Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, INFO, UPDATE, REGISTER, REFER, NOTIFY
Supported: timer, path, replaces
Allow-Events: talk, hold, conference, refer
Content-Length: 0
SIP/2.0 403 Forbidden
FROM: <sip:sbc.xxx.xx>;tag=0aB5jm3SF07ve
TO: <sip:sbc.xxx.xx>
CSEQ: 128016309 OPTIONS
CALL-ID: 101b723c-3113-1237-6092-00155d000d46
VIA: SIP/2.0/TLS x.x.x.x;branch=z9hG4bKvjX0rU7K5QtKS
REASON: Q.850;cause=21;text="4da4bb47-5ace-41b2-ba4b-6516fb4771c2;Record-Route and Contact headers are missing"
CONTENT-LENGTH: 0
ALLOW: INVITE
ALLOW: ACK
ALLOW: OPTIONS
ALLOW: CANCEL
ALLOW: BYE
ALLOW: NOTIFY
SERVER: Microsoft.PSTNHub.SIPProxy v.2018.9.10.4 i.EUNO.4
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