Dial plan for Grandstream Gxp280 Ip-Phone.

1. Brekeke Product Name and version:

2. Java version:2.1.1.6

3. OS type and the version:win 2003 standard

4. UA (phone), gateway or other hardware/software involved:GrandStream Gxp 280,RadiusCat and ivrCat

5. Select your network pattern from http://www.brekeke-sip.com/bbs/network/ ... terns.html :

6. Your problem:I'm trying to make a call to a registered Grandstream Gxp280 Ip-Phone through a DID number.

Grandstream is registered in Brekeke sip server with a global ip: 345.98.34.67 but has a local ip:192.168.0.7 assigned to it in the local network.When I make a call,there's no error message but several invite request is sent to Grandstream but it seems there's no response from Grandstream.The line stays open for about 60 seconds before responding with request acknowledged.

I'm not sure what's wrong but I don't trust my dial plan.Here's my dial plan:

[Matching Patterns]
$request=^INVITE
$address=my_DID_IP
To=sip:My_DID_no @

[Deploy Patterns]
$Auth=false
To=sip:my_Grandstream userid@Grandstream registered ip:5060
$target=Grandstream local ip
$Continue=false.

I'll appreciate any suggestion that could help me resolve this issue.

Thanks.

The line stays open for about 60 seconds before responding with request acknowledged.

does grandstream ring? and call established?
dial plan
[Matching Patterns]
$request=^INVITE
$address=my_DID_IP
To=sip:My_DID_no @

[Deploy Patterns]
$Auth=false
To=sip:my_Grandstream userid@
brekeke can handle the users behind nat.

if the call cannot reach grandstream
set sip server configuration/sip/nat traversal/interval(ms) 10000 or shorter
or register grandstream with shorter registrantion expiration time

does grandstream ring? and call established?

No,Grandstream does not ring but I could hear a slight wave like sound on my Cellphone before Brekeke's request acknowledged response.

Could it be that Brekeke is unable to locate Grandstream on the local network since GrandStream has a DHCP assigned ip:192.168.0.7

Remember that Grandstream is registered to Brekeke sip server with a global ip: 345.98.34.67 but has a local ip:192.168.0.7 assigned to it in the local network.

Is there a way to add both gloabal and local ip to the dial plan to enable Brekeke locate Grandstream?

While waiting for your response,I'll try your recommended solution by setting the sip server configuration/sip/nat traversal/interval(ms) 10000 or shorter and see if it works.

Thanks Hope.

I suppose "345.98.34.67" is a dummy IP address...
but "345" is not allowed in an IP address pattern..
it should be less than 256.

As hope suggested, shorter REGISTER period will solve the issue.

Otherwise, try STUN in the Grandstream.

Stun did it,now I can receive calls and also call out.

Thanks Harold and Hope for your valuable suggestions.