Mazhar Abbas

• Provide technical support to Mitel partners for Mitel Communication Managers and Applications. • Analyze SIP and Network related issues and recommend solutions to the customers. • Assist R&D in reproducing the reported issues in Lab Environment. • Assist colleagues from Sales and Pre-Sales to evaluate and design Project-based solutions. • Assist Mitel Partners to implement the solutions. • Validation of Interoperability between SIP-Trunk Providers and Mitel Communication Managers.

• Independent inception of the company along with technical implementations. • Installation and Configuration of Asterisk & A2Billing. • SIP-Trunk with Service Providers. • Customization of A2Billing. • Coding and Integration of Payment Method “SOFORT-Überweisung” into A2Billing using PHP. • Invoice Automation using Java, MySql and Oracle Reports. • Accounting and Marketing of the Products (Long distance calls via Call-through and Internet).

• Design and Implementation of VoIP infrastructure and Migration from TDM to VoIP. • Analyze and troubleshoot VoIP and Network issues. • TDM and SIP Trunks configuration with diverse Service Providers. • Configuration of VLANs and implementation of QoS Features using Cisco Routers and Switches. • Installation, Configuration and Customization of Asterisk based PBXs.,Cisco VoIP Gateways, VOS3000, VoIPSwitch and CTILabs TDM- Switch. • Configuration and implementation of IPSec and OpenVPN Tunnels

• Online Casino: Design and development of Datebase (MS SQL Server 7.0) for an Online Casino with over 50 games. • My Internet: Designed the database (DB2) for Internet Filter Software for schools.