Rath Microtech smartphone 2 hangs up after called party answers

[topazdemon]

I read on the troubleshooting tips web page that this could indicate a bad mic, but it doesn't seem to be bad. Has anyone had any other experience with this model hanging up immediately when the called party answers?

Thanks

 

[curlycord]

This the site you checked?

Problem: When the emergency button is pushed, the called party answers but the phone hangs-up immediately.

Things to check:

• If a loud hum is heard after the called party answered, the microphone is likely bad.

The mic will need to be replaced
• If SoundNet is enabled on the phone but it is not calling SoundNet, the phone will hang up.

http://www.rathmicrotech.com/trgu.html

So you think its not bad mic but is there a hum?, I would call there support line.




=----(((((((((()----=
curlycord

http://www.curlycord.com

 

[Sympology]

What back end is it connected to (not at all familiar with this kit)
If it is an IP system, sounds like classic RTP blocked port issue

Robert Wilensky:
We've all heard that a million monkeys banging on a million typewriters will eventually reproduce the entire works of Shakespeare. Now, thanks to the Internet, we know this is not true.

http://alvechurchlounge.org.uk

 

[topazdemon]

Connected to an AudioCodes MPX-118 unit connected to a mitel 3300 backend. I'm working with the vendor to troubleshoot the hardware now.

 

[topazdemon]

I took a second phone from an elevator that worked and swapped it in. Same issue, so I'm definitely leaning toward the MPX/Phone system side on this one.

 

[Sympology]

MPX-118?

Not familiar with that (do you mean an MP-118 FXS?)
Certainly sounds like an RTP issue (SIP messages getting through, but then no audio).
Any firewalls in the way? If so, this would be a good port of call (ports getting blocked / being NAT'd)
Check your RTP port range is set to the same range as the switch.
Check your codecs, You can't go wrong with G711a / u.




Robert Wilensky:
We've all heard that a million monkeys banging on a million typewriters will eventually reproduce the entire works of Shakespeare. Now, thanks to the Internet, we know this is not true.

http://alvechurchlounge.org.uk

 

[topazdemon]

Yes MP-11x FXS, in this case it is an 8 port

The weird thing is that I get about 2 seconds of audio "hello front de-" then the device hangs up.

No firewalls in the way.

I will verify the codecs, but I'm pretty sure they are all G711.

Thanks,

 

[topazdemon]

This issue was resolved by replacing the smartphone 2 with the latest version smartphone 6. One of the downed phones had a minor issue in the system, but it was not related to the overall failure(s)