C o m m u n i c a t i o n s , I n c .
Room 0611, Bldg.B Tsinghua Tongfang Technology Plaza, 1 Wangzhuang Road, Beijing, CHINA
- 6 -
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Call Forwarding – Unconditional, No Answer, On Busy
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Auto-Answer
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Do-Not-Disturb
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Configurable Dial Plan Support
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Phone Book with 100 entries
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Speed Dialing Support (10 entries)
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Call History: Missed, Answered, Dialed Numbers with call time (10
each)
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Adjustable volume for handset, ring volume and speaker etc.
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Hot Line Calling
2.3. Standard and Protocol
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SIP (RFC2543; RFC3261;RFC3262 ; RFC2976 ; RFC3264 ; RFC3311 ;
RFC3515 ; RFC3666 ; RFC3420 )
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IEEE 802.3 /802.3 u 10 Base T / 100Base TX
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Support for Layer3 Qos(Diff-Serv) and Layer 2 Qos (802.1P/Q)
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PPPoE: PPP over Ethernet
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TCP/IP: Transmission Control Protocol / Internet Protocol
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ARP: Address Resolution Protocol
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ICMP: Internet Control Message Protocol
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RTP: Real-time Transport Protocol
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RTCP
:
Real-time Transport Control Protocol