There are two settings on Grandstream phones that can be a major cause for dropped calls and should be set to the following:
use random port = no
nat traversal = keepalive
Modified on: Fri, 1 Jul, 2016 at 1:19 PM
There are two settings on Grandstream phones that can be a major cause for dropped calls and should be set to the following:
use random port = no
nat traversal = keepalive
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