Experience with Cisco IP Telephony, Cisco Unified Communications Solutions, Routing and Switching , Asterisk, Opensips, and Telephony in general. My goal is to become a Session Initiation Protocol Expert (achieved) Specialties: Unified Collaboration involving a variety of Cisco Unified Communications solutions as well open source products, such as Cisco Unified Communications Manager 7.x, 8x, 9x, 10,x, Cisco Unified Presence 7.x 8.x, Cisco Unity Connection 10.x, Cisco VCS, Cisco TMS, Cisco Jabber, Cisco Voice Gateways 2800's, 2900'x, 3900's, AS5400's series, Cisco CUBE, Opensips and Asterisk. Expertise with multiple voip Protocols such as SIP, H323, SCCP, MGCP. Biography from communities: Cesar Fiestas is a seasoned Unified Communications and Collaboration expert that has worked and consulted for the most prestigious organizations in the world. Expertise: Experience with Cisco IP Telephony, Cisco Unified Communications Solutions, Routing and Switching , Asterisk, Opensips, and Telephony in general. My goal is to become a Session Initiation Protocol Expert (achieved) Specialties: Unified Communications involving a variety of Cisco Unified Communications solutions as well open source products, such as Cisco Unified Communications Manager 6.x, 7.x, 8x, 9x, 10,x, Cisco Unified Presence 7.x 8.x, Cisco Unity Connection 10.x, Cisco Unified Contact Center Express, Cisco VCS, Cisco TMS, Cisco Jabber, Cisco Voice Gateways 2800's, 2900'x, 3800's, AS5400's series, Opensips and Asterisk. Expertise with multiple voip Protocols such as SIP, H323, SCCP, MGCP.