siemens hipath voip setup

We have Siemens Hipath PBX at two sites connected with RF link.

One site PBX is connected with PPPoE Internet with static IP (you have to configure it)

We want to get connected with our PBX using mobile device like NOKIA/Blackberry using wifi or GPRS

You have to configure or reconfigure the PBX system so that all the existing features remain unchanged but mobility functionality would be populated. The wifi mobile device must act as an extension while travelling & receive and dial numbers as local extension.

Switch: Siemens HiPath 3550

IP Card: HG1500

Latest Dect Phone: Siemens Gigaset SL78H

Latest Desk Phone: Siemens Openstage 60 HFA

Skills: Asterisk PBX, VoIP

Project ID: #1497341