IPLDK20 SIP Trunks incomming not working 1

[fineline1234]

Hi there
I have a IPLDK20 - latest 3.8 software with 4 sip trunks from Gamma
the system has worked fine for a year or so - then in the last month it seems the trunks go to sleep - outgoing on all 4 trunks no problem - incoming if they hav'nt had activity on the lines within 25 mins calls fail incoming.

changed router out for new one still same problem
if anyone can help me here i would be very grateful

Steve Wallace

 

[doktor]

Did anyone change anything in the ipLDK-20 just before this issue occurred?
Did anyone upgrade the ipLDK-20?
Powerloss? Or bad or missing grounding?

Did you fault report this to your SIP service provider?

Sorry for these many questions...


///doktor

 

[fineline1234]

Thanks Doktor for your prompt response


Did anyone change anything in the ipLDK-20 just before this issue occurred? NOT AWARE - new customer
Did anyone upgrade the ipLDK-20? NO
Powerloss? Or bad or missing grounding? MAYBE POWERLOSS - I WILL CHECK GROUNDING

Did you fault report this to your SIP service provider? YES THEY REPORT SYSTEM AND OR ROUTER NOT RESPONDING INTERMITTENTLY
i should have posted this sorry!

 

[doktor]

It is OK.
You should contact your local LG-Nortel dealer, so that they can make shure that this is not a hardware fault.
If you suffer a power loss or high voltage transient, then the hardware can be affected.

///doktor

 

[doktor]

If a system has been woking well, and suddently stops working it is of great importance to find out what happened just before the fault occurred. This can save a lot of time of fault location.

///doktor

 

[SteveBUK]

Your best option would be to use a packet capture program, such as Wireshark (free download from web).
Connect the router to a HUB (not a switch), pc with Wireshark to hub, and VoIM to the hub.
Using Wireshark you can trace the IP Packets comming in and out of the VoIM.

When the incomming call is made - do the SIP packts make it past the router ?

 

[ipLDKInstaller]

Does your ADSL Router have it's own SIP capibility? If so, make sure that any reference to port 5060 on the router is removed, and the SIP ports shut down.