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Forum Discussion
AC1200 & VOIP
Have a friend with Cox and an AC1200-C6220 cable modem that I'd suggested. We've been unable to get it to work with Callcentric & a Grandstream HT801 ATA or a Poly SIP phone. The symptoms were q...
Is SIP ALG enabled on the modem under Advanced tab/Setup/WAN Setup?
Try putting the IP address of one of those devices into the modems DMZ.