It can sometimes be a real headache for no obvious reason :-) Sounds like they may be using another provider to carry international calls which doesn't accept AAC, and they may be transcoding for national calls or just leaving it alone.
If however your 'local' calls are only to other users on the same provider, this isn't totally unexpected, as those calls will usually be establishing directly between devices instead of having the call audio transcoded via the SIP proxy. Disabling AAC may have made their system accept one of the lower quality codecs which they may not officially support, but which works anyway. Could you send the same kind of log over as before, except showing a successful call? I'm interested to see what codecs it shows - what codecs are in use? Tap the 'signal bars' icon in top left corner to display the bit rate and codecs in use. You may have to move your finger to it carefully to avoid triggering the proximity sensor if it's on the same side. Cheers Chris On Wed, 9 Jan 2019, 05:18 Andi Soko <[email protected] wrote: > Good morning Christopher, > > You know... I'm a technical guy... but sometimes cause and effect eludes > me... > After playing around a while with your suggestions it turns out disabling > "AAC-ELD 16kHz" in the audio settings solves the issue?!?!? > I can understand why a not supported codec can result in a "call failed". > But how is it possible, that an audio setting is OK for local > (inner-country) calls but wrong for international?!?! > > Do you have any clue? > > Anyhow... thanks heaps for the awesome help with my issues. > > Thanks again! > Soko > > On Tue, 08 Jan 2019 19:18:14 +0100, Christopher Woods < > [email protected]> wrote: > > 488 not acceptable here can be due to codec problems. In the SDP in the > initial invite, I don't see any G.711 A-law or U-law (aka PCMA/PCMU) listed > - only Speex, iLBC, AAC and Opus plus the usual signalling telephone-event > stuff. > > Chances are your new telco provider may not wish to transcode to G.711, so > is refusing the set up? Settings -> Audio -> PCMU/PCMA at the bottom. I'd > expect to see > a=rtpmap:8 PCMA/8000 > a=rtpmap:0 PCMU/8000 > > in the SDP from your client along with all the other codecs, if calling > SIP to PSTN, as fallback codecs. Further confirmed by their wiki -- > https://enwiki.peoplefone.com/wiki/Supported_Codecs > > *peoplefone supports the codecs G711a/u, G722, G729. We also support the > T-38 protocol for fax. (Please contact us, if you want to use it.)* > > *Please try to follow the order in the configuration if possible:* > > > - *g711a* > - *g711u* > - *g722* > - *g729* > > > Sidenote - although you appear to already have it disabled, if you have > problems establishing calls in future make sure you the video feature is > disabled ("always use video" on the desktop, "Enable video" in the mobile > client). > > Video requires RTP/AVPF profiles to be sent in the SDP, which some SIP > proxies don't like. Your invite appears to be OK though (RTP/AVP), except > for the lack of G.711 codecs advertised in your INVITE. > > On Tue, 8 Jan 2019 at 09:04, Andi Soko <[email protected]> wrote: > >> Hi Sylvain, >> >> Sorry, I've made a wrong assumption. I had an old SIP line from a >> different provider in Linphone and didn't know that dailing from the >> history also dails the old provider. >> >> So the real issue is apparently: >> I cannot dail international numbers with Linphone and peoplephone.at. >> Non-international numbers work! With an other App (Zioper) or another >> SIP >> line (localphone.com) everything works. >> - Changing the setting "Subsitute + in phone number" doesnt make a >> difference >> - In the setting "Country code prefix" (if this setting is from >> importance) I have tried "+43", "0043" and "0" (country I'm in). Somehow >> it doesnt take "" as an entry. >> >> The error is still the same: >> Call failed >> Cannot call + +4935...9915 >> Reason was: Not Acceptable Here >> [Media Descriptions Syntax error while parsing the SDP] >> >> Find attached the log file. >> >> thanks >> Soko >> >> On Tue, 08 Jan 2019 09:43:30 +0100, Sylvain Berfini >> <[email protected]> wrote: >> >> > Hi Soko, >> > >> > Can you attach the logs starting from the INVITE sent to the server at >> > peoplephone.at to the moment you have the media description syntax >> error >> > please ? >> > >> > Thanks. >> > >> > >> > Le 08/01/2019 à 09:39, Andi Soko a écrit : >> >> Hey guys, >> >> >> >> I have linphone installed and using the a SIP line from peoplephone.at >> . >> >> >> >> I mainly call customers in Germany and when I call their >> official/main >> >> number "+4935...9926" everything works. >> >> But when I call an extension-number to get to a specific person >> >> (+4935...9915) I get the following error: >> >> >> >> Call failed >> >> Cannot call + +4935...9915 >> >> Reason was: Not Acceptable Here >> >> [Media Descriptions Syntax error while parsing the SDP] >> >> >> >> >> >> When I use another SIP client app (i.e. Zioper) with the same SIP >> line >> >> all numbers are working. But I like linphone interface and would like >> >> to use it :) >> >> >> >> can anyone give me some hints were to look at or which option to >> change? >> >> >> >> thanks >> >> Soko >> >> >> >> _______________________________________________ >> >> Linphone-users mailing list >> >> [email protected] >> >> https://lists.nongnu.org/mailman/listinfo/linphone-users >> > >> > >> > _______________________________________________ >> > Linphone-users mailing list >> > [email protected] >> > https://lists.nongnu.org/mailman/listinfo/linphone-users >> _______________________________________________ >> Linphone-users mailing list >> [email protected] >> https://lists.nongnu.org/mailman/listinfo/linphone-users >> > > > > _______________________________________________ > Linphone-users mailing list > [email protected] > https://lists.nongnu.org/mailman/listinfo/linphone-users > >
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