[SIPForum-discussion] 180 Ringing

[Aniella Juverdeanu]

In our network happens to be sent by a UMTS (mobility) switch with SIP interface. So pretty normal although a bit different - not denied by RFCs

Aniella

From: discussion-bounces at sipforum.org [mailto:discussion-bounces at sipforum.org] On Behalf Of Stephen James
Sent: February 17, 2015 03:25 AM
To: Gerhard VanderWath; discussion at sipforum.org
Subject: Re: [SIPForum-discussion] 180 Ringing

Either case is valid. Esp. if the far end is interworking with ISUP.

Stephen James
sjames_1958 at yahoo.com<mailto:sjames_1958 at yahoo.com>

We are not princes of the earth, we are the descendants of worms, and any nobility must be earned.

________________________________
From: Gerhard VanderWath <Gerhard.VanderWath at voxtelecom.co.za>
To: "discussion at sipforum.org" <discussion at sipforum.org>
Sent: Monday, February 2, 2015 2:32 AM
Subject: [SIPForum-discussion] 180 Ringing

Hi all.

Just a quick one, should 183 session Progress be sent by callee before the 180 Ringing without SDP or after.

Regards




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