[Freeswitch-users] Gateway SIP OPTIONS ping Contact header

[Sebastian Zenzerović]

Hello,

should I open a ticket in Jira (issue type: improvement?) if I'd like to 
have this implemented in future versions?

BR,

Sebastian


On 12.9.2018. 18:34, Michael Jerris wrote:
> 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 at inet.hr <mailto:sebastian.zenzerovic at 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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