/ http://www.slideshare.net/images/logo.gif / ºÝºÝߣShare feed for ºÝºÝߣshows by User: sayedibrahim4 https://cdn.slidesharecdn.com/profile-photo-sayedibrahim4-48x48.jpg?cb=1459244916 Unified Communications Systems is my life and my Areas of expertise: PBX (Avaya, Nortel ,Panasonic, good background at Elastic (SIP BPX), Cisco) ISDN PRI Programming (vb6 and vb.net) Telephone Network. Training and help new companies at PBX installation and maintenance. Design Telephone total Solution. Planning the project and design the IVR and Call Center solutions with PBX. Help the customer to prepare the requirements to our solution. Help our sales manager to achieve the customer’s needs with lowest cost.