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Telephony & VoIP Systems : Telephones : CISCO - Cisco IP Phone 7821 with Multiplatform Firmware
 
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2 Lines Cisco IP Phone with Multiplatform Firmware

Series: Cisco IP Phone 7800

Model: Cisco IP Phone 7821 with Multiplatform Firmware

  • Codecs: G.711 (A-law and m-law), G.722.2, G.722, G.729ab, ILBC, iSAC, OPUS
  • DTMF: In-band, out-of-band (RFC 2833), and SIP INFO
  • MOS Score Reporting (Telchemy)
  • The 7800 series provides exceptional noise isolation when used with a Cisco 500 Series Headset
  • MAC address (IEEE 802.3)
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The Cisco® IP Phone 7800 Series with Multiplatform Phone Firmware is a costeffective, high-fidelity voice communications portfolio designed to improve your organization’s person-to-person communications while reducing your operating costs on approved Unified-Communications-as-a-Service (UCaas) platforms.
  • Codecs: G.711 (A-law and m-law), G.722.2, G.722, G.729ab, ILBC, iSAC, OPUS
  • DTMF: In-band, out-of-band (RFC 2833), and SIP INFO
  • MOS Score Reporting (Telchemy)
  • The 7800 series provides exceptional noise isolation when used with a Cisco 500 Series Headset
  • MAC address (IEEE 802.3)
  • SIP protocol support (RFC3261 and companion RFCs)
  • IPv4 (RFC 791)
  • IPv6 (RFC 2460): System Interoperability Testing Required
  • DNS: A record (RFC 1706), SRV record (RFC 2782)
  • Dynamic Host Configuration Protocol (DHCP) (RFC 2131)
  • Simple Network Time Protocol (SNTP) (RFC 2030)
  • Network Address Translation (NAT) transversal, serial tunnel (STUN)
  • UDP/TCP
  • Link Layer Discovery Protocol (LLDP)
  • Cisco Discovery Protocol
  • TR.69 Provisioning: System Interoperability Testing Required
 
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