[YMCS/YDMP Free Trial Program]Yealink would like to offer Free Trial Program of Yealink device management service for our current eligible customers. You can see the details below.
https://www.yealink.com/ydmp-freetrial-2020


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Yealink SIP T20P
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James_Yealink Offline
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Posts: 1,159
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Post: #2
RE: Yealink SIP T20P
Hi Mesa,

Sorry for the late.
Yes, ou can instanll an earlier firmware. But May I know why do you want to use old firmware?

Regards,
James
09-28-2014 11:34 AM
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Messages In This Thread
Yealink SIP T20P - mesa.ayuda - 09-06-2014, 12:25 AM
RE: Yealink SIP T20P - James_Yealink - 09-28-2014 11:34 AM
RE: Yealink SIP T20P - mesa.ayuda - 10-01-2014, 11:43 PM
RE: Yealink SIP T20P - James_Yealink - 10-11-2014, 10:54 AM
RE: Yealink SIP T20P - mesa.ayuda - 10-15-2014, 09:11 PM
RE: Yealink SIP T20P - James_Yealink - 10-16-2014, 04:12 PM

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