[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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Invalid Line
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2 Circles Communations_Support Offline
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Joined: Oct 2017
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Post: #1
Invalid Line
Good afternoon,

We have 2 W52P's at our site. We frequently have the message 'invalid line' come up on the phone and we are unable to make or receive calls. A reboot of the router appears to resolve the problem but we need to determine why it is happening in the first place so we can stop it happening in future as it wastes a lot of our time.

Can you please advise?

many thanks
10-24-2017 01:12 PM
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Messages In This Thread
Invalid Line - 2 Circles Communations_Support - 10-24-2017 01:12 PM
RE: Invalid Line - Aishion_Yealink - 10-25-2017, 07:10 AM
RE: Invalid Line - jolouis - 10-30-2017, 03:46 PM

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