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Huawei IP Phone eSpace 7870
User Manual
Item
Size (mm)
Weight (kg)
Working temperature
Relative humidity
Authentication standard
2.4.2 Technical Specifications
Table 2-8 eSpace 7870 technical specifications
Item
Line
Voice quality
Protocol
Function key
Voice feature
Technical
feature
Network
configuration
Issue 01 (2012-06-20)
Description
6 straight-through lines10 programmable soft keys (excluding line keys)
High-definition (HD) encoding, speaker, and handset
SIP v1 (RFC 2543), SIP v2 (RFC 3261), IPv6, UDP/TCP/TLS,
Out-of-band DTMF (RFC 2833), In-band DTMF, SIP INFO DTMF,
STUN client (NAT traversal), DNS SRV (RFC 3263), Reliability of
provisional responses (RFC 3262), Offer/answer (RFC 3264),
Subscription for MWI events (RFC 3265), Dialog-state monitoring (RFC
4235), REFER (RFC 3515)
6 navigation keys, 1 volume adjustment bar, and 8 special function keys
(Voice Mail, headset, conference, hold, mute, transfer, redial, and speaker)
Full-duplex handset, speaker, and headset
Advanced DSP technology
Dynamic negotiation codec and voice effective load
Voice encoding standards including G723.1,G726,G729AB,G722,G.711
A-law/μ-law and iLBC.
In-band and out-band DTMF transmitting
Echo cancellation
Sidetone cancellation with support of advanced jitter buffer, packet delay,
and packet loss compensation
User-friendly GUIs, remote address book download, XML browser,
call hold, call forward, DND, call transfer, call waiting, mute, redial, call
history, volume control, caller ID display,3-way conferencing,speed Dial,
and auto answer
Network configuration keys, LCD, Web page, or Advanced Encryption
Standard (AES) encrypted configuration file
Manual static network configuration and dynamic network configurations
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
Description
273 x 204 x 42
1.05
0 ° C to 40 ° C
10% to 90%
FCC/CE/ROHS
2 eSpace 7870 Overview
11
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