simonkleyn
asked on
grandstream 486 fails after 5 mins
Hi,
my Grandstream works fine for out going calls.
ok for incomming calls for the first few mins after this no calls, how do i go about fixing this?
many thanks for all you input, S
my Grandstream works fine for out going calls.
ok for incomming calls for the first few mins after this no calls, how do i go about fixing this?
many thanks for all you input, S
ASKER
yes it's a hardware phone, no new firm ware, connected to a router
Simon
What voip service are you using for sending/receiving voip calls?
Or are you dialing the IP address of the remote phone directly?
Or are you dialing the IP address of the remote phone directly?
ASKER
the phone connects directly into the grandstream box, this then connects to the router
so i guess the phone calls the grandstream this then calls the router etc
Simon
The grandstream must be configured to talk to a particular SIP gateway. What provider are you using?
What type of internet connection do you have?
Have you put the grandstream in the DMZ of the router?
What type of internet connection do you have?
Have you put the grandstream in the DMZ of the router?
ASKER
provider btconnect.com
connection broadband 512, next week 2M
probably ! , what's a DMZ when at home :-) !
S
btconnect is you ISP. What provider are you using for the VoIP service?
You have to configure the grandstream with a voice provider so that when you dial a number it knows where to connect to and they then connect you to the normal telephone service in the country you dialed.
DMZ is a standard feature of most home ADSL/DSL routers. What router are you using?
You have to configure the grandstream with a voice provider so that when you dial a number it knows where to connect to and they then connect you to the normal telephone service in the country you dialed.
DMZ is a standard feature of most home ADSL/DSL routers. What router are you using?
ASKER
provider is sipgate.co.uk
it dials out fine, it hust does not receive incomming calls after the first few minutes
router is etec GT 60 50
Simon
it dials out fine, it hust does not receive incomming calls after the first few minutes
router is etec GT 60 50
Simon
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ASKER
I assume you have the home ADSL service from BT and therefore have a single IP address? yes
In this case you would use the router to enable multiple machines/devices to access the internet. yes
If this is the case you will need to forward the ports requires for the SIP protocol and RTP to the grandstream box and then still will need to configure the STUN server on the grandstream device.
that is prob the issue, i shall check the above link tomorrow, configuring the STUN server should be fun :-)
If the router has a DMZ facility (which sends all unknown traffic to the device designated as the DMZ) then this is often much easier.
i don't think the router has this facility
thanks for the links,
Simon
In this case you would use the router to enable multiple machines/devices to access the internet. yes
If this is the case you will need to forward the ports requires for the SIP protocol and RTP to the grandstream box and then still will need to configure the STUN server on the grandstream device.
that is prob the issue, i shall check the above link tomorrow, configuring the STUN server should be fun :-)
If the router has a DMZ facility (which sends all unknown traffic to the device designated as the DMZ) then this is often much easier.
i don't think the router has this facility
thanks for the links,
Simon
ASKER
all fixed, thanks for the info
Have you tried looking to see if there is any newer firmware available for it?
What telephone system are you connecting it to?