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Polycom 335 and VVX 410 Will Not Answer sip2sip.info Inbound Calls

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Polycom Employee & Community Manager

Re: Polycom 335 and VVX 410 Will Not Answer sip2sip.info Inbound Calls

Hello LEDAdd1ct,

As already replied have a look at:

 

Jan 19, 2012 Question: How to troubleshoot Polycom VoIP related Issues?

Resolution: Please check => here <=

 

Simply make another wireshark trace on the Snom or the Soft Client end and compare the bad and the good call.

 

The above FAQ post contains details what happens when the phone is asnwered and maybe it is a port issue or similar but comparing the wireshark traces should show this.


Please ensure to provide some feedback if this reply has helped you so other users can profit from your experience.

Best Regards

Steffen Baier

Polycom Global Services

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The title Polycom Employee & Community Manager is a community setting and does not reflect my role. I am just a simple volunteer in the community like everybody else. My official "day" Job is 3rd Level support at Poly but I am unable to provide official support via the community.

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Notice: This community forum is not an official Poly support resource, thus responses from Poly employees, partners, and customers alike are best-effort in attempts to share learned knowledge. If you need immediate and/or official assistance please open a service ticket through your proper support channels.
Please also ensure you always check the VoIP , Video Endpoint , Skype for Business , PSTN or RPM FAQ's
Message 11 of 17
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Visitor

Re: Polycom 335 and VVX 410 Will Not Answer sip2sip.info Inbound Calls

Hello LEDAdd1ct,

 

I am experience the same issue as well.  Let me know what you find and I will have to do a trace as well.

 

 

Message 12 of 17
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Occasional Advisor

Re: Polycom 335 and VVX 410 Will Not Answer sip2sip.info Inbound Calls

@ejfron, thank you for posting. 

 

Maybe together we can figure something out.


I have not had a chance to have my friend call me and do a trace on the other phones/software client.

 

Please, if you find out anything, please post here and we can both help each other out.  :-)

Message 13 of 17
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Occasional Advisor

Re: Polycom 335 and VVX 410 Will Not Answer sip2sip.info Inbound Calls

Okay, I ran the test again with the Polycom VVX 410.

 

First, I tried enabling port forwarding and had my friend call me.

 

Those screenshots are here:

http://s17.postimg.org/72vqc7qv3/image.png
http://s17.postimg.org/iqps6rfzz/image.png
http://s17.postimg.org/70bupdn7j/image.png

 


Second, I disabled port forwarding and put the phone in the DMZ and once again had my friend call me. 

 

Those screenshots are here:

 

http://s17.postimg.org/nqrtsgb0f/image.png
http://s17.postimg.org/96aqxmg1r/image.png
http://s17.postimg.org/jvt13mh8f/image.png
http://s17.postimg.org/haiv2d2gv/image.png
http://s17.postimg.org/fu7ck7zjz/image.png

 

 

With both, the phone rings, but I cannot answer.

 

I set the phone to a static IP of 192.168.1.124 and enabled port forwarding first, then disabled port forwarding and put my phone in the DMZ as seen here:

 

http://s2.postimg.org/4z5kdn2qh/image.png
http://s2.postimg.org/ihcgpxevt/image.png

 

 

As before, PhonerLite Portable and my Snom 300 continue to ring and answer perfectly. 

 

Is there a way I can display the screenshots directly in the thread to make it easier for everybody to see instead of having to click on a link? 

Message 14 of 17
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Visitor

Re: Polycom 335 and VVX 410 Will Not Answer sip2sip.info Inbound Calls

Hey LEDAdd1ct!

 

A quick update, we were able to get the Answer button to work to Update the Expires to 60 seconds (see attachment).  Apparantly, with other times, there ended up being multople registrations on our proxy.  And at that time, the Answer button did not work.  With 60 seconds, we only have one registration at all times.

 

 Hope this helps.

 

 

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Occasional Advisor

Re: Polycom 335 and VVX 410 Will Not Answer sip2sip.info Inbound Calls

Interesting.

 

Thank you for posting.

 

Since there is certainly nothing to lose, I will try this and report back!

 

EDIT:  I changed the settings as per your picture.  Now, I just need to wait for my friend to come home from work, and then he can call me, and I can test the ability of the phone to successfully answer inbound calls. It would be wonderful if this fixed the problem!

 

 

I will post again and report success or failure.

 

EDIT:  I do strongly believe it is a setting on the phone, as my other hard/softphone both work just dandy.

Message 16 of 17
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Occasional Advisor

Re: Polycom 335 and VVX 410 Will Not Answer sip2sip.info Inbound Calls

—just tried it.

 

No change!  :-(

Message 17 of 17