[Spce-user] 180 Ringing with SDP
Daniel Grotti
dgrotti at sipwise.com
Wed Nov 29 06:10:22 EST 2017
Hi,
NGCP does not send any ring back tone, cause we do not generate them.
What your provider is telling you is not correct.
Sending back a 180 RInging means that the UAC should generate the ring
tone locally.
There is no requirements in RFC saying that a Class 5 (or proxy) must
generate a ring tone vie SDP.
NGCP forwards back to the caller what it receives from the callee.
This is a problem of your provider, not on NGCP.
Cheers,
Daniel
On 11/14/2017 05:14 PM, Christian Osburg wrote:
>
> Hello,
>
> I´m using SIP:Provider CE Edition here in Germany.
>
> My callees didn´t get a ringtone when they call a subscriber of my NGCP.
>
> My upstream provider told me that my NGCP is sending „180 Ringing“ but
> without SDP to him. Thats the problem.
>
> Is it possible to tell NGCP that SDP should send within the „180
> Ringing“ answer?
>
> Thank you for your answers in advance.
>
> Kind regards,
>
> Christian
>
>
>
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