[asterisk-biz] GSM VoIP Gateway

I am looking to find a GSM Gateway to route calls to and from asterisk.

 

I have a Portech MV372 that was sent back to Portech for repair. They repaired it and put the latest software on it.

 

It works but only with unlocked SIM cards. Although their software has an option to enter the PIN, it just won’t register on the cell network..

 

My carrier in Panama (Cable and Wireless) SIMs are always locked, requiring a PIN.

 

I have been unable to disable the PIN requirement. Portech technical support has been unable (and unwilling) to support me.

 

Can anyone recommend some hardware? One or two ports would be sufficient.

Thanks

 

Dave