02-10-2010 05:06 AM - edited 03-18-2019 11:05 AM
I have a number of 7921 wireless phones and all of them seem to be having echo problems for internal calls
anyone got any good troubleshooting guides for this? or any knows issues with the 7921?
02-10-2010 05:47 AM
Which exact firmware do you have on these phones ?
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