Instruction Manual
Table Of Contents
- Preface
- Introducing Linksys IP Phones
- Getting Started
- Managing Linksys IP Phones
- Using the 900 Series LCD Display
- Localization
- Changing the Display Background (SPA942/962)
- Using the SPA932 (Sidecar) with the SPA962
- Configuring the Web Service
- RSS Newsfeeds (SPA962)
- Call Appearances and Extensions
- Line Key LEDs
- Using Call Features
- Selecting the Audio I/O Device and Line
- Making Calls
- Answering and Ending Calls
- Hold and Resume
- Call Waiting
- Speed Dialing
- Three-Way Conferencing
- Attended Call Transfer
- Blind Call Transfer
- Call Back
- Message Waiting Indication (MWI)
- Accessing Voicemail
- Muting Calls
- Shared Call Appearances
- Personal Directory
- Caller and Called Name Matching
- Dialing Assistance
- Supplementary Services
- Call Logs
- Audio Volume Adjustment
- Managing Ring Tones
- Configuring a Dial Plan
- System Administration
- Troubleshooting FAQ
- SPA900 Series LCD Command Reference
- Entering Names and Numbers into the Directory
- Entering Directory Names, Numbers and Ring Default
- 2 Speed Dial
- 3 Call History
- 4 Ring Tone
- 5 Preferences
- 6 Call Forward
- 7 Time/Date
- 8 Voice Mail
- 9 Network
- 9.1 DCHP
- 9.2 Current IP Address
- 9.3 Host Name
- 9.4 Domain
- 9.5 Current NetMask
- 9.6 Current Gateway
- 9.7 Enable Web Server
- 9.8 Non DHCP IP Address
- 9.9 Non DHCP Subnet Mask
- 9.10 Non DHCP Default Route
- 9.11 Non DHCP DNS 1
- 9.12 Non DHCP DNS 2
- 9.13 Non DHCP NTP Server 1
- 9.14 Non DHCP NTP Server 2
- 9.15 Multicast Address
- 9.16 Enable VLAN
- 9.17 VLAN ID
- 9.18 CDP
- 10 Product Info
- 11 Status
- 12 Reboot
- 13 Restart
- 14 Factory Reset
- 15 Custom Reset
- 16 Set Password
- 17 Set LCD Contrast
- 18 CallPark Status
- 19 Language (SPA922, 942, and 962)
- 20 GUI Properties (SPA962)
- 21 Web Service (SPA962)
- Linksys IP Phone Field Reference
- Acronyms
- Glossary
1-6
Linksys IP Phone Administrator Guide
Firmware Version 5.1
Chapter 1 Introducing Linksys IP Phones
Feature Descriptions
The administrator can select the low-bit-rate codec used for each line. G.711a and G.711u are always
enabled.
Table 1-3 describes the codecs supported by the Linksys IP phones.
When no static payload value is assigned per RFC 1890, Linksys IP phones can support dynamic
payloads for G.726.
Ta bl e 1-3 Codecs Supported by Linksys IP Phones
Codec (Voice Compression
Algorithm)
Description
G.711 (A-law and mµ-law) This very low complexity codec supports uncompressed 64 kbps
digitized voice transmission at one through ten 5 ms voice frames
per packet. This codec provides the highest voice quality and uses
the most bandwidth of any of the available codecs.
G.726 This low complexity codec supports compressed 16, 24, 32, and 40
kbps digitized voice transmission at one through ten 10 ms voice
frames per packet. This codec provides high voice quality.
G.729A The ITU G.729 voice coding algorithm is used to compress digitized
speech. Linksys supports G.729. G.729A is a reduced complexity
version of G.729. It requires about half the processing power to code
G.729. The G.729 and G.729A bit streams are compatible and
interoperable, but not identical.
G.723.1 Linksys IP phones support the use of ITU G.723.1 audio codec at 6.4
kbps. Up to two channels of G.723.1 can be used simultaneously.
For example, Line 1 and Line 2 can be using G.723.1
simultaneously, or Line 1 or Line 2 can initiate a three-way
conference with both call legs using G.723.1.