Rafik H.

As a VoIP Expert with bachelor's degree in Telecommunication Engineering, 9 years of experience and holding CCNP Collaboration and Microsoft Teams Voice Engineer certificates, I am a highly skilled professional who is responsible for designing, implementing, troubleshooting and maintaining reliable and secure collaboration solutions that help businesses improve communication and collaboration with their employees and customers. I have a strong technical background in Cisco collaboration solutions, including Cisco Unified Communications Manager (CUCM), Cisco Unity Connection (CUC), Cisco Contact Center Express (UCCX), Cisco Webex Calling, Cisco Webex Contact Center, Cisco Jabber, Cisco Contact Center Enterprise (UCCE), CMS, Cisco Expressway, CUCME, CUCMBE, Cisco Broadworks and CUBE. I am proficient in configuring, deploying, and troubleshooting these solutions to meet the specific needs of businesses. I am also experienced in integrating third-party solutions with Cisco Call Manager. In addition to all of that, I have experience in managing, implementing and troubleshooting other VoIP servers like 3CX, Yeastar, Grandstream, Vital PBX, Oracle SBC and FreePBX, also I have experience in migration between VoIP systems specifically migration from 3CX to FreePBX. I have experience in managing, implementing and troubleshooting firewalls and routers on a lab environment like Fortigate firewall, Cisco and Mikrotik routers. I have on hands experience with the below: - Cisco Webex Calling - Cisco Webex Contact Center - Expressway - CMS - CUBE - UCCX - UCCE - CUCM - SIP Trunks - H323 voice gateways - CUC - Analog voice gateways - ISDN voice gateways - MGCP voice gateways - CUCMBE - CUCME - Cisco Jabber - CIPC - Oracle SBC - Cisco BroadWorks servers - Imagicle Fax Server - Imagicle Attendant Console Server - Calabrio recording application CUCM configuration - Linux system administration - 3CX - Linphone - Twilio - FreePBX - Yeastar - Grandstream - Vital PBX - Fortigate - Cisco routers - Mikrotik routers - IPSEC VPN - VLAN - OSPF - BGP - NAT