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P31003-H3550-S403-4-7620, 02/05
HiPath 3000 V5.0, HiPath 5000 V5.0, Service Manual
10-49
Workpoint Clients
IP Telephony (Voice over IP)
10.6.1.2 optiPoint 420 Telephones
The IP telephones in the optiPoint 420 family have self-labeling keys. Self-labeling means that
each key is assigned a display (1 line with 12 characters) in which the currently saved function
or call number is shown.
10.6.1.2.1 optiPoint 420 economy
Main features
● Protocols
– H.323, HFA/V3 + V4, CorNet IP, SIP
– HTTP, DHCP, SNMP, FTP
– H.235 (security)
– QoS to DIFFSERV and IEEE 802.1 p/Q
● Voice compression G.711, G.722, G.723 and G.729 A/B
● Power over LAN (in accordance with Cisco and standard pre802.3af)
● CTI (for example, via TAPI 1st Party)
● 1 Ethernet (10/100BaseT) interface (self-configuring) for LAN connection
● 12 function keys (5 changeable using HiPath 3000 Manager E, 7 user-programmable) with
LEDs and self-labeling keys
● Graphic display (swivel) with 2 lines, 24 characters each
● 3 dialog keys for interactive user prompts: “Yes”, “Back”, and “Next”
● Open listening
● 2 volume adjustment keys (plus/minus), pitch and display contrast
● Suitable for wall mounting
● No modularity (no connecting capability for adapters or add-on devices)
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