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Clean Phone

VoIP Telephones

Models

The following Clean Phone

Model

Description

Surface-Mount VoIP Telephone with stainless steel front panel and polyester overlay,

295-702W

three autodial buttons, hookswitch push button, off-hook indicator, keypad, and

stainless-steel surface-mount enclosure.

Flush-Mount VoIP Telephone with stainless steel front panel and polyester overlay,

295-702F

three autodial buttons, hookswitch push button, off-hook indicator, keypad, and

stainless-steel mounting bracket.

System Requirements and Limitations

VoIP telephones require PoE (Power-over-Ethernet) or a local 24–48 V dc power source for operation.

Two VoIP telephones can be connected in a peer-to-peer configuration without the need for a LAN.

However, a 10/100 BaseT Ethernet network with SIP (Session Initiation Protocol) server is required for

systems containing three or more VoIP telephones. Conferences are limited by the customer's LAN

media capabilities and the services available at each telephone.

Each telephone can also receive multicast broadcasts. Multicast allows a single audio stream to be sent to

multiple end points simultaneously, achieving multi-point paging, or public address functionality over IP.

Multicast requires the use of a SIP server that specifically supports multicast functionality and each

telephone must be configured (enabled) to receive multicast packets.

Tips for VoIP Subscribers

Recommended actions for VoIP subscribers:

•

Provide an accurate physical address to the interconnected VoIP service provider for dispatch of

emergency services to the location.

•

Know the VoIP service provider's procedures for updating the address. Promptly update address

information in the event of a change.

•

Have a clear understanding of all limitations of the 911 service.

•

VoIP service may not work when the power is out, or the Internet connection is down. Consider

installing a backup power supply, maintaining a traditional telephone line, or having a wireless

telephone as a backup.

•

See http://www.fcc.gov/cgb/consumerfacts/voip.html for questions about interconnected VoIP and

911 or about VoIP in general.

P:\Standard IOMs - Current Release\42004 Instr. Manuals\42004-470G.docx

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VoIP telephones are detailed in this manual:

Table 1. Model Chart

Pub. 42004-470G

Page 2 of 15