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Серия 8841 IP-телефонов Cisco может использоваться для крупных и мелких фирм, заведений, предприятий. Обеспечивает безопасный, первоклассный, полнофункциональный VoIP. Включает гибкие варианты развертывания, безотказно функционирует в больших помещениях, офисах, на открытом пространстве.
Модели поддерживают интеграцию функций телефонии с персональными мобильными устройствами, совместную работу видеоконтента на 720p HD, а также проводные и беспроводные микрофоны расширения. Минимизируют траты на обслуживание. Единый входной доступ с помощью Cisco Expressway предоставляет подключение на значительном расстоянии.
|
Feature |
Detail |
|
Audio |
● Codecs: G.711 (A-law andm-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) |
|
Video |
● H.264 HD 720p Video camera, WVGA display ● Picture in Picture (PiP) ● Camera exposure control ● Bandwidth control |
|
Network |
● 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 Translator (NAT) transversal, STUN ● UDP/TCP ● Link Layer Discovery Protocol (LLDP) ● Cisco Discovery Protocol (CDP) ● TR.69 Provisioning: System Interoperability Testing Required |
|
Security |
● 802.1x authentication ● Media encryption via SRTP ● Transport Layer Security (TLS) ● Encrypted configuration files ● Digest authentication ● Password Login ● HTTPs secure provisioning ● Mandatory/Optional Secure Call |
|
Applications |
● Cisco XML Services Interface (XSI) ● UC-One Presence |
|
Call control and audio features |
● Busy Lamp Field (BLF)1 ● Call back on busy ● Call blocking - anonymous and selective ● Call conferencing - hosted (N-party)1 ● Call conferencing – local 3-way ● Call forwarding - unconditional, no answer, on busy ● Call hold ● Call pickup - selective and group1 ● Call park and unpark1 ● Call transfer - attended or blind ● Call waiting ● Caller ID name and number and outbound caller ID blocking ● Caller ID mapping for incoming calls ● Configurable dial/numbering plan support with inter-digit timers - per line ● Configurable supplementary services soft keys ● Distinctive ringing based on calling and called number ● Do not disturb ● Extension mobility/hot-desking1 ● Group paging1 ● Hoteling1 ● Intercom1 ● Individual volume setting per audio path (headset/handset/speaker) ● Multicast paging ● Music on hold ● Outbound caller ID blocking ● Visual Voice Message Waiting Indicator (VMWI) ● Shared/bridge line appearance1 ● Supplementary services feature activation codes |
|
Directory |
● Local phonebook ● XML/LDAP remote directory ● Broadsoft Directory ● Intelligent search ● Call History ● Reverse address lookup in all directories ● Intelligent Proximity (mobile device contacts synchronization) |
|
Management |
● Configuration: Browser/Phone/Auto-provision ● Auto provision via TFTP/HTTP/HTTPs for mass deployment ● Packet Capture, Problem Reporting Tool (PRT) and upload of PRT ● Configuration report to provisioning server |