Cyber-attacks using the VoIP protocol Session Initiation Protocol (SIP) have been growing this year accounting for over 51% of the security event activity analyzed in the last 12 months, according to ...

SCCP is a Cisco proprietary master/slave protocol that is used by call agents such as CallManager/Unified Communications Manager to communicate with devices such as Cisco IP phones using TCP port 2000 ...

This excerpt is from CCIE Voice Exam Quick Reference Sheets (Digital Short Cut), by Mark Lewis and published by Cisco Press. ISBN-10: 1-58705-333-0 Read Mark Lewis’ blog for Cisco Subnet here. More ...

SCOTTSDALE , Ariz., Nov. 29 /PRNewswire/ -- General Dynamics C4 Systems, a business unit of General Dynamics (NYSE: GD), announced today that the Sectera vIPer Phone has been certified by the National ...