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Yealink SIP-T28

Yealink SIP-T28
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YEALINK NETWORK TECHNOLOGY CO.,LTD
www.yealink.com
Yealink SIP Phones’ Firmware Change Log
1/20
Yealink SIP IP Phones Change Log of Version 61
·Firmware VersionFrom x.60.0.120 To x.61.0.80
·Applicable ModelsSIP-T28/T26/T22/T20/T12
·Release DateJanuary 15
th
, 2012
·Mainly released for Call Center field

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Yealink SIP-T28 Specifications

General IconGeneral
Power SupplyAC 100-240V, 50/60Hz
SIP Accounts6
Headset PortYes (RJ9)
HD AudioYes
Network10/100 Mbps Ethernet
Audio CodecG.711, G.729, G.722, iLBC
Protocols SupportedSIP
Ethernet Ports2 (10/100 Mbps)
PoE SupportYes
Voice CodecsG.711, G.729, G.722, iLBC
SpeakerphoneYes, full-duplex
Network Ports2 (10/100 Mbps)
CodecsG.711, G.729, G.722, iLBC
Expansion Module SupportYes

Summary

New Features in Version 61

Auto Provision Code Feature

Configures code for auto provision URL. Enables phone to update from server address.

Headset Priority and Dual Headset

Enhances headset usage with priority and dual headset connection capabilities.

Multicast IP Paging and Music on Hold

Adds multicast paging and music on hold server features for enhanced communication.

SNMP and Caller-ID Display

Enables SNMP monitoring and displays Caller-ID from remote phonebooks.

Optimizations in Version 61

Bug Fixes in Version 61

Instruction: New Features

Auto Provision Code Feature Configuration

Configure code for auto provision URL. Phone updates from server address.

Headset Priority Feature Configuration

Enables headset as default for calls, switching automatically. Disabled by default.

Dual Headset Feature Configuration

Allows two headsets to connect; one to headset, one to handset port. Disabled by default.

Instruction: New Features (Continued)

Multicast IP Paging Feature Configuration

Configure multicast IP addresses for paging via DSS Key or Contacts.

Music on Hold Server Feature Configuration

Play music during call hold via SIP URI. Server support needed.

Supported Caller-ID Display from Remote Phonebook

Displays names from remote phonebook for incoming calls. Disabled by default.

CosmoCom ACD and Synchronization Configuration

Optimizes ACD and synchronizes status between phone and webpage. Server support needed.

SNMP Feature Configuration

Retrieve phone information via servers using SNMP. Supports 3 trusted addresses.

Display XML Information from SIP Notify Message

Allows phone to display XML info from SIP Notify messages. Disabled by default.

Display Name for Call Forward Configuration

Displays caller/transferrer names for forwarded calls. Server support needed.

Instruction: Optimizations

Account Registration Status Display

Shows account registration status in the webpage status section.

Webpage Modification Prompt During Calls

Prompts user to update webpage changes after a call ends.

IE9 Browser Compatibility

Ensures the phone webpage functions correctly with IE9 browser.

CosmoCom Type in SIP Server Type

Adds CosmoCom as an option for SIP Server Type, with specific registration behavior.

Instruction: Optimizations (Continued)

DTMF Configuration Limitations

Restricts 'How to INFO DTMF' configuration when Inband or RFC2833 is selected.

PlayHoldTone and PlayHoldToneDelay Configuration

Allows configuration of hold tone playback and delay time. Enabled by default.

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