Cisco 7841 Administration Guide

Vertical Service Announcement Codes
DescriptionParameter
Defaults to blank.Service Annc Base Number
Defaults to blank.Service Annc Extension Codes
Outbound Call Codec Selection Codes
DescriptionParameter
Makes this codec the preferred codec for the
associated call.
Defaults to *017110.
Prefer G711u Code
Makes this codec the only codec that can be used for
the associated call.
Defaults to *027110.
Force G711u Code
Makes this codec the preferred codec for the
associated call.
Defaults to *017111
Prefer G711a Code
Makes this codec the only codec that can be used for
the associated call.
Defaults to *027111.
Force G711a Code
Makes this codec the preferred codec for the
associated call.
Defaults to *01722.
Only one G.722 call at a time is allowed. If a
conference call is placed, a SIP re-invite message is
sent to switch the calls to narrowband audio.
Prefer G722 Code
Makes this codec the only codec that can be used for
the associated call.
Defaults to *02722.
Only one G.722 call at a time is allowed. If a
conference call is placed, a SIP re-invite message is
sent to switch the calls to narrowband audio.
Force G722 Code
Makes this codec the preferred codec for the
associated call.
Prefer G722.2 Code
Makes this codec the only codec that can be used for
the associated call.
Force G722.2 Code
Cisco IP Phone 7800 Series Multiplatform Phones Administration Guide
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Cisco IP Phone Troubleshooting
Vertical Service Announcement Codes

Cisco 7841 Specifications

General

Ethernet Switch	Yes
Lines	4
Headset Port	Yes
Wall Mountable	Yes
Display	3.5-inch grayscale display
Audio	Wideband audio
PoE	IEEE 802.3af
Speakerphone	Full-duplex
Ethernet Ports	2 x 10/100/1000
Headset Jack	RJ9
Protocols	SIP
Codec Support	G.711, G.722, G.729, iLBC
Mounting	Desk or wall
Weight	1 kg