[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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Phones Lose Registration
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shmuel@birns.net Offline
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Posts: 9
Joined: Jun 2014
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Post: #1
Phones Lose Registration
We have about 1000 Yealink phones out there connected to our hosted PBX system. Every so often a customer will call us and say that their phone is not working. I log into their phone and the accounts page either says Register-Failed or Disabled. Sometimes I can hit confirm and the phone then registers, sometimes I disable the account and re-enable and it registers, and sometimes none of that works. When those don't work, I change the Local SIP Port under Accounts>Advanced from 5060 to some random port and then it registers.

I need help in trying to figure out why they keep going down.

This is with T2X phones and T4X phones.

All of them are on firmware version 73.X for the T4X phones and 72.X for the T2X phones.
09-17-2015 11:40 PM
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Yealink_Michael Offline
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Posts: 382
Joined: Jul 2015
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Post: #2
RE: Phones Lose Registration
hi

there are many reasons that may cause the phone register failed , like network lost , password not correct and so on , for this issue , please see the suggest below :

1. check to confirm that the network of the customer is fine when the phone register failed
2. upgrade the T2X to the newest firmware ,firmware download link :
http://support.yealink.com/documentFront...isplayPage
click according to your model
3. reset the phone to factory
4. set the Server Expires to a shorter value like 30, path : web page -> account -> Register -> Server Expires

if all the above solution can't solve your issue, please provide us the trace file for future analysis,trace file including pcap file, config bin and syslog file , and we need three of them provide at one time.

for how to get them , please refer to the FAQ below:
http://forum.yealink.com/forum/showthread.php?tid=1319

send the trace file to support@yealink.com

TKS & BR

Michael
09-18-2015 05:56 AM
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