Nokia E71 registered but placing calls anonymously

[atsak]

I have an E71 I just got (thanks Ward for the idea). Set it up with my PIAF box and all is well, for the first 2 minutes or so; can make and receive calls. Then, after that, "The number you have dialed is not in service".

In the call logs on my PBX, it shows the channel as sip/anonymous instead of sip/extension# after the problem starts occuring.

I have tried switching ports and so on, to no avail. Any other ideas anyone can think of that could cause this problem? It's like the Nokia phone "forgets" its registration details.

 

[atsak]

I have also downloaded the sip settings application from Nokia and setup a STUN server and so on to no avail.

 

[atsak]

So this is definately a NAT problem. If I give the E71 a public IP it's fine. THe problem seems to be the registration value of 3600 is too high; my other phones I set to 59 seconds and they all work fine. I can't figure out how to change the default registration timeout value in the E71. Found a lot of other things but not that one. HELP

 

[jroper]

Hi

I played with the E61 with VoIP, and it does not seem from your experiences that anything is any better than it was for me.

These phones work fine when you are in the same network, but not through NAT.

My experience was that you could make one call, and after that, no more, without a phone reboot.

Additionally, when you left the phone for a while, the wifi would switch off, and you would not get calls, and if you used the phone, it rapidly ran out of battery life, so i am not sure whether they are ready for primetime yet.

The holy grail of walking into the office, the phone in your pocket associating with the wifi, and the SIP phone registering to your extension seems to be a little way away yet.

However, using 3g, I have made some good calls, and is nice for cheap international calls via my own carrying, rather than paying the mobile carrier, who usually charges like a wounded bull for international calls.

However, if you have a public IP address available, OpenSBC http://www.opensourcesip.org may provide the answer, and when I get time....

Joe

 

[atsak]

I did some further testing today. The problem seems to be worse on some routers than other. As some of the NV articles point out, the Dlink gaming routers are good, the Linksys and Netscreen 5 series are not. The netscreen 25 series I tested today was fine as well (though this was the only SIP device on the network, whereas at home on the NS-5 it was not (all used different ports)). However, what I've decided to do is simply use the providers connection (ie Rogers in my case in Canada) as they give a public IP to their devices anyway. If there was some way to change the default registration time on this device (I really tried) from 1200 seconds down to about 40 or 50 I think it would work flawlessly, but that setting doesnt' exist in Nokia's SIP settings software (as far as I can tell; there are lots of TCP / UDP settings, but not the one for registration).

 

[TDF]

I'm too tired now but I found this

http://wiki.forum.nokia.com/index.php/Undocumented_Features_of_the_Nokia_SIP_Stack

maybe you can edit the file directly.

 

[wardmundy]

There is a Nokia SIP Utility that lets you adjust some of the settings. You might try that.

 

[TDF]

There is a Nokia SIP Utility that lets you adjust some of the settings. You might try that.

I looked at that section but it looked too mysterious, never realised what IAP stood for.

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http://sw.nokia.com/id/56b636ee-f2d9-4b95-b9d4-9f31e76383be/SIP_VoIP_Settings_User_Guide_v1_0_en.pdf