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<tt>Hi,<br>
NGCP does not send any ring back tone, cause we do not generate
them.<br>
What your provider is telling you is not correct.<br>
Sending back a 180 RInging means that the UAC should generate the
ring tone locally.<br>
There is no requirements in RFC saying that a Class 5 (or proxy)
must generate a ring tone vie SDP. <br>
NGCP forwards back to the caller what it receives from the callee.<br>
<br>
<br>
This is a problem of your provider, not on NGCP.<br>
<br>
Cheers,<br>
Daniel<br>
<br>
<br>
<br>
<br>
<br>
</tt>On 11/14/2017 05:14 PM, Christian Osburg wrote:<br>
<blockquote type="cite"
cite="mid:d7acdf1a62314af6adeaffa009be8ba9@osburg.it">
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<p class="MsoNormal">Hello,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I´m using <a href="SIP:Provider"
moz-do-not-send="true">SIP:Provider</a> CE Edition here in
Germany.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">My callees didn´t get a ringtone when they
call a subscriber of my NGCP.<o:p></o:p></p>
<p class="MsoNormal">My upstream provider told me that my NGCP
is sending „180 Ringing“ but without SDP to him. Thats the
problem.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Is it possible to tell NGCP that SDP should
send within the „180 Ringing“ answer?<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Thank you for your answers in advance.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Kind regards,<o:p></o:p></p>
<p class="MsoNormal">Christian<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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