Need Help Using A GSM Gateway with my FreePBX

Hello Everyone,

I need help. Currently I have a GSM Gateway setup together with my FreePBX box.

To dial to a cellphone number I dial the extension 102 to get a dial tone and I dial the Cellphone number.

Is there a way to do this where I only dial the cellphone number and it goes through 102 and sends the cellphone number i dialled there programmatically?

I am a noob at using asterisk but hoping that i could learn more with your help.

Thanks you.

Who’s GSM Gateway are you using?

Hi Lee,

We are using our own GSM gateway.Its a Suncomm 1695i. I was able to use it before using Asterisk without the FReePBX Gui using the following Code.

exten =>_0932XXXXXXX,1,DIAL(SIP/${EXTEN}@109,60,r)
exten =>_0932XXXXXXX,n,Hangup

How do I do this in FreePBX?
Please pardon me for my ignorance since I am a noob to Asterisk but am willing to learn.

Any help would be greatly appreciated.


If the GSM Gateway is capable of sending a registration to the FreePBX system then all you should really need is trunk “Outbound” settings similar to this:


Where xxxxxx is the password used in the registration string.

This works for the Dinstar GSM gateways and yours may be similar.

Hi Lee,

I was able to fix the problem by creating a Custom trunk in FreePBX with the following Custom Dial String.


This the one I used and set my GSM gateway to 1-stage dialling mode.

And it all works now.


I moved 3 posts to a new topic: Connecting Dinstar Gateway

This topic is now closed. New replies are no longer allowed.

Topic closed for age. Current conversation that revived this moved to it’s own thread that refers back to here.

Thanks for using FreePBX