Yealink SIP-T28 Owner's Manual

YEALINK NETWORK TECHNOLOGY CO.,LTD
www.yealink.com
Yealink SIP IP Phones Change Log of Version 61
· Firmware Version：From x.60.0.120 To x.61.0.80
· Applicable Models：SIP-T28/T26/T22/T20/T12
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· Release Date：January 15 , 2012
· Mainly released for Call Center field
Yealink SIP Phones' Firmware Change Log
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