[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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Call parking/transfer fails at random
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Post: #6
RE: Call parking/transfer fails at random
Hi Jaap,
Because these firmware have software protection(made by tiptel), you can't upgrade them to neutual firmware, so you need to contact your distributor to resolve this.
Sorry and Thanks.
07-09-2013 11:34 AM
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RE: Call parking/transfer fails at random - Yealink Support - 07-09-2013 11:34 AM

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