Cisco IP Phone 8851 - VoIP phone - SIP, RTCP, RTP, SRTP, SDP - 5 lines, The Cisco IP Business Phone 8851 helps increase personal productivity in the workplace thanks to powerful yet easy-to-use features. This office phone has an attractive, ergonomic design that offers comfortable use, with wideband audio for crystal clear voice communications, "always-on" reliability, and encrypted voice communications for enhanced security.
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Cisco CP-8851-K9 IP Phone 8851 - VoIP phone - SIP, RTCP, RTP, SRTP, SDP - 5 lines