Check out triple CCIE (Collaboration, Voice and R&S), Andy Vassar, from iPexpert, as he lectures on the CCIE Collaboration Lab topic SIP CUBE. For more …



  1. You make this sound amazingly simple. I like your drawings and the way explain the routes. I have subscribed to you. I am working on my CCNA Collaberation but i do find that watching some CCIE stuff is useful for me. GREAT JOB!!!

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