I use Magicjack with this modem/router and have for many years with no problems. Within the last month, the call quality has gone down. I have replaced all phones, cables, jacks, etc. with no success. Magicjack tech support says it may be the following router/modem settings:
Need to open up the UDP ports 5060 thru 5070 and must disable the SIP ALG.
Tried to have Spectrum do these tasks, but I own the modem/router outright and they can’t/won’t address the unit because I own it.
Can you assist with these issues??
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