VoIP Cookbook: Briker's ZAP Trunk
This type of Trunk is connected to PSTN line, through analog card (TDM xxx) or digital card (TE xxx). After doing the zaptel configuration, do the configuration in IPPBX, by first of all logging in to IP PBX Administration.
Choose Trunks menu and choose Add Zap Trunk. A menu for trunk configuration should appear as shown in The Figure.
Fill Zap Identifier (trunk name) with g0, which means group 0. The description of the group's name (for example, group 0) can be found at /etc/asterisk/zapata-channels.conf file.