They said the 1st carrier rejected it so the second 183 is from a second carrier.. but yes, the first carrier shouldn't be sending a 183... Anyway -- if you *please* look at the pcap from the first email, the log I posted a link to later, or the past two emails -- you'll see FS originally offers both PCMU and PCMA in the initial invite. I think we need Anthony to chime in here... he knows the RFC stuff! -Avi On Tue, Jul 3, 2012 at 6:22 PM, Kristian Kielhofner <kris@kriskinc.com>wrote:
That's pretty nasty of voxbeam to do... Considering they return the first 183 less than one second after the initial INVITE I'd say it's very likely they're providing false ringback and/or FAS (false answer supervision). Meanwhile the actual ringback comes over two seconds later with PCMA. That's shady and if I were you I'd switch carriers just on principle.
However, as I said before they're not doing anything that's not allowed by the various specifications although FAS is considered by many as fraud.
What are your codec settings like? Perhaps FS is rejecting PCMA because you're not allowing it?
On Tue, Jul 3, 2012 at 9:38 AM, Avi Marcus <avi@avimarcus.net> wrote:
If so.. which I think is not.. is this a bug then in FS?
http://pastebin.freeswitch.org/19423 You see from the first SDP that PCMU and PCMA were both options. Then for the next SDP FreeSWITCH was only considering PCMU which was the one that got chosen by the first SDP.
Voxbeam claims it's not their fault.. is it?
-Avi
On Tue, Jul 3, 2012 at 4:26 PM, Kristian Kielhofner <kris@kriskinc.com> wrote:
Avi,
Multiple 18x responses that change the SDP are allowed. I can't find the specific document text now but as a random guy on the internet (for whatever that's worth) I'm certain it is allowed.
A re-INVITE can't be sent from either side until the dialog has been established (200+ACK). In a case where the UAC (caller) would like to update the session before it is established method UPDATE must be used.
On Tue, Jul 3, 2012 at 1:04 AM, Avi Marcus <avi@avimarcus.net> wrote:
Are multiple 183s from the endpoint that changes the SDP allowed? I'm under the impression this is broken, similar to http://wiki.freeswitch.org/wiki/NDLB#NDLB-allow-nondup-sdp ... which is why when the codec changes, FS freaks out and cancels the call because of codec negotiation error. Does that NDLB flag allow this, too?
First has: audio 10116 RTP/AVP 0 101 13 Second has: audio 49020 RTP/AVP 8 13 101 PCAP: http://ge.tt/7MpyBwJ
Can someone point me to the specific RFC so I can tell the supplier to fix it? And just curious.. what would make this allowed? A re-INVITE..?
-Avi
Professional FreeSWITCH Consulting Services: consulting@freeswitch.org http://www.freeswitchsolutions.com
FreeSWITCH-powered IP PBX: The CudaTel Communication Server http://www.cudatel.com
Official FreeSWITCH Sites http://www.freeswitch.org http://wiki.freeswitch.org http://www.cluecon.com
Join Us At ClueCon - Aug 7-9, 2012
FreeSWITCH-users mailing list FreeSWITCH-users@lists.freeswitch.org http://lists.freeswitch.org/mailman/listinfo/freeswitch-users UNSUBSCRIBE: http://lists.freeswitch.org/mailman/options/freeswitch-users http://www.freeswitch.org
-- Kristian Kielhofner
Professional FreeSWITCH Consulting Services: consulting@freeswitch.org http://www.freeswitchsolutions.com
FreeSWITCH-powered IP PBX: The CudaTel Communication Server http://www.cudatel.com
Official FreeSWITCH Sites http://www.freeswitch.org http://wiki.freeswitch.org http://www.cluecon.com
Join Us At ClueCon - Aug 7-9, 2012
FreeSWITCH-users mailing list FreeSWITCH-users@lists.freeswitch.org http://lists.freeswitch.org/mailman/listinfo/freeswitch-users UNSUBSCRIBE: http://lists.freeswitch.org/mailman/options/freeswitch-users http://www.freeswitch.org
_________________________________________________________________________ Professional FreeSWITCH Consulting Services: consulting@freeswitch.org http://www.freeswitchsolutions.com
FreeSWITCH-powered IP PBX: The CudaTel Communication Server http://www.cudatel.com
Official FreeSWITCH Sites http://www.freeswitch.org http://wiki.freeswitch.org http://www.cluecon.com
Join Us At ClueCon - Aug 7-9, 2012
FreeSWITCH-users mailing list FreeSWITCH-users@lists.freeswitch.org http://lists.freeswitch.org/mailman/listinfo/freeswitch-users UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users http://www.freeswitch.org
-- Kristian Kielhofner
_________________________________________________________________________ Professional FreeSWITCH Consulting Services: consulting@freeswitch.org http://www.freeswitchsolutions.com
FreeSWITCH-powered IP PBX: The CudaTel Communication Server http://www.cudatel.com
Official FreeSWITCH Sites http://www.freeswitch.org http://wiki.freeswitch.org http://www.cluecon.com
Join Us At ClueCon - Aug 7-9, 2012
FreeSWITCH-users mailing list FreeSWITCH-users@lists.freeswitch.org http://lists.freeswitch.org/mailman/listinfo/freeswitch-users UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users http://www.freeswitch.org