E1 ISDN PRI for dialer

Can we use E1 ISDN PRI line for making out bound dialing. If yes then I would like to have more details on the same

Yes, you should be able to (though not directly). The connect to the E1 IDSN PRI line must be set up using a PBX system, and Voicent software configured to use the PBX system’s IP extensions. Most of today’s PBX systems, such as Asterisk, Avaya, and Cisco, should support these IP extensions. These extensions are also called SIP extensions. Once configured, Voicent software should act as a set of SIP softphones. The connection between Voicent software and the PBX is through the regular data network (ethernet) connections. The PBX then connects the call to your phone service through the E1 line.