[asterisk-users] Looking Asterisk SIP Guru

[John T. Bittner]

Hello,

I am looking for a consultant that know asterisk in and out including how to troubleshoot sip and rtp.
I have a device that this acting very strange and I need to prove it’s the device code and not an issue with my setup.

Very simple setup, all local no nat… Grandstream video phone and a AIphone IX-MX7 door station.

PJSIP … doorstation to grandstream 3370 works perfectly. Early video works as well.
PJSIP … grandtream to doorstation I get a error from the doorstation I get

SIP/2.0 400 Bad Request
To: <sip:104 at 192.168.1.10>;tag=ec09c0b4zps4.0.0
From: "108"<sip:108 at 192.168.1.154>;tag=bcaee3d1-d6d1-4354-aee1-885d4b89182d
Via: SIP/2.0/UDP 192.168.1.154:5060;branch=z9hG4bKPj038d15bb-c53b-4677-a471-4fa44a21599b;rport
Call-ID: 08caa86d-8fc8-4ed1-bec2-6828acb9e017
CSeq: 17397 INVITE
Content-Length: 0
x-reinvitekind: mediadirectionchange

Tried a few things, I still don’t understand why I am getting this, I cannot find it coming from the asterisk system or the Grandstream in my traces.
So
Switch the Aiphone to use chan_sip on port 5099 just to test.

Again
SIP … doorstation to PJSIP grandstream 3370 works perfectly. Early video works as well.
PJSIP … granstream to SIP doorstation works somewhat, I get early video but no audio. If I answer the doorstation before the early video pops up, I get the window in the doorstation that allows me to put a call on hold.
When I do, and take back off hold, I get audio.
If I wait for early video on the doorstation and then answer it, the door station never comes up with the menus to put a call on hold. So no audio.

Anyone have any ideas or willing to do some consulting work please let me know asap.
FYI some captures are attached.

Thanks

John Bittner
CTO
<image001.png>
380 US Highway 46, Suite 500
Totowa, NJ 07512
Phone: 201.806.2602 x2405
Fax:       201.806.2604
Cell:       973.390.1090
www.xaccel.net<http://www.xaccel.net/>

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À¨ÄÄ}ª!SIP/2.0 400 Bad Request
To: <sip:104 at 192.168.1.10>;tag=ec09c0b4zps4.0.0
From: "108"<sip:108 at 192.168.1.154>;tag=bcaee3d1-d6d1-4354-aee1-885d4b89182d
Via: SIP/2.0/UDP 192.168.1.154:5060;branch=z9hG4bKPj038d15bb-c53b-4677-a471-4fa44a21599b;rport
Call-ID: 08caa86d-8fc8-4ed1-bec2-6828acb9e017
CSeq: 17397 INVITE
Content-Length: 0
x-reinvitekind: mediadirectionchange

<capture-to-aiphonewithholdandwaitforpreviewvideo>
<capture-to-aiphonewithhold>
<capture-from-aiphone>
<capture-to-aiphone>
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