Creating a GSM trunk

Create a GSM trunk with a unoGSM Junghanns

I have evaluated to GSM PCI cards that integrate with asterisk. Junghanns duoGSM and voismart. Both solutions take very different technical approaches to the creation of channel inside of asterisk. Junghanns solution (bristuff) is based on Motorola and requires a patch to the zapata channel driver. VoiSmart vGSM has its own channel (vgsm).

The SMS state machine of Junhganns is very broken, leading to numerous lock states.


 * Install Ubuntu Hardy
 * Install SSH server

apt-get install openssh-server apt-get install ntpdate apt-get install build-essentials apt-get install libncurses5-dev (for termcap)

./install.sh (calls download + compile)
 * Download the bristuff patch from Junghanns, the patch will download the zaptel, asterisk, etc sources, apply the patch etc.

Conf files

/etc/zaptel.conf /etc/asterisk/zapata.conf

/etc/asterisk/extensions.conf

[channels] txgain = -10.0 rxgain = 0.0

signalling = gsm context = from-gsm

group=1

; phone number for SIM card in slot A exten=0731082126 ; PIN for SIM card in slot A ;WARNING! This can lock your SIM but reloading a few times your configuration ;pin=0000

channel => 1