Yes, agreed. Unfortunately adding another proxy in the middle makes it work - I used a FreeSwitch system to proxy between the two endpoints and as mentioned the system works ok with Freeswitch. I wanted to simply use Wireshark to sniff the frames between client and server, but this isn’t so easy these days without getting an ethernet tap.
> On 10/11/2021, at 12:50 PM, Trent Creekmore <tr...@lindows.org> wrote: > > > If the log is not helpful, then you are going to have to connect to some SIP > proxy or open source based router where you can install and run sngrep on it. > You can then easily check the SIP signaling in order to see what is going on. > > > > > > On 11/9/21 5:25 PM, Chris Jackson wrote: >> Thanks for the response. >> >> Yes, I know what the response means. Apologies for not stating this, but >> that is what I meant earlier when I said that without seeing the packets >> it’s unclear what is actually wrong - the server reports that the request is >> invalid (malformed), but that in itself doesn’t help without seeing the >> packet to try and understand WHAT part it has a problem with. I know that it >> works with other SIP servers (such as FreeSwitch) so the question is how to >> get it to work with LinPhone server. >> >> Cheers >> Chris >> >>> On 10/11/2021, at 12:19 PM, Trent Creekmore <tr...@lindows.org> wrote: >>> >>> Have you looked up the SIP response code for 400? >>> >>> >>> "The request could not be understood due to malformed syntax." >>> >>> >>> >>> On 11/9/21 4:59 PM, Chris Jackson wrote: >>>> Hi, >>>> I was wondering if anyone has the Grandstream GDR3710 SIP phone/camera >>>> working with LinPhones SIP cloud? I’ve managed to get it working with a >>>> local server running FreeSwitch to connect to the LinPhone apps, but once >>>> I use the LinPhone SIP switch it fails to connect. Unfortunately the debug >>>> output from the GDS3710 is not especially useful - it shows a 400 response >>>> is returned from the server, but as I can’t seem to get it to output the >>>> request or response packets it’s unclear what is actually wrong. >>>> >>>> The GDS3710 can only support numerical extensions so I’ve used an account >>>> like 12...@sip.linphone.org and this works for calling between phones. I >>>> should also add that I can connect TO the GDS3710 from another client (eg >>>> the LinPhone app on an iPhone) and get voice and video, but I can’t >>>> initiate the call from the GDS3710. >>>> >>>> If someone has this running I’d appreciate some pointers on how this was >>>> set up. >>>> >>>> Thanks >>>> Chris >>>> _______________________________________________ >>>> Linphone-users mailing list >>>> Linphone-users@nongnu.org >>>> https://lists.nongnu.org/mailman/listinfo/linphone-users >>> _______________________________________________ >>> Linphone-users mailing list >>> Linphone-users@nongnu.org >>> https://lists.nongnu.org/mailman/listinfo/linphone-users >> >> _______________________________________________ >> Linphone-users mailing list >> Linphone-users@nongnu.org >> https://lists.nongnu.org/mailman/listinfo/linphone-users > > _______________________________________________ > Linphone-users mailing list > Linphone-users@nongnu.org > https://lists.nongnu.org/mailman/listinfo/linphone-users _______________________________________________ Linphone-users mailing list Linphone-users@nongnu.org https://lists.nongnu.org/mailman/listinfo/linphone-users