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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...
Any progress on this?
Often_Confused wrote:
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 quite weird; Callcentric would not acknowledge DTMF while the Grandstream would (***20, for example) And incoming calls would ring but answering got you no audio,
It's either the Netgear or Cox. After lots of fumbling around, a friend with more specific VOIP networking expertise went there but was unable to find any advanced settings on the 1200 that he's familiar with on commercial gear.
At this point, I'm ready to advocate just dumping Cox & the 1200 for ATT Fiber. Any other suggested approaches?
We have tested the Grandstreams off-site, fed by fiber providers; no problem.
It's difficult to troubleshoot remotely, even with access to the C6220 as things change for unknown reasons; after a power failure and reboot, it changed for the worse. A Poly SIP phone is now incapacitated as well, signaling but no audio.
We'll have someone on-site in a few days. But the better overall solution looks like getting the customer to abandon DOCSIS and move to fiber; it's available, dependable, and no more expensive.
Ok, thanks for the feedback.
Hope you can get it working.
Good Luck.