I have this SV8500 with many 3rd party SIP licenses, some of which are used in 3rd party analog gateways. I use Sangoma Vega 5000 which gives me 50 analog phone lines, as well as a Grandstream Handytone 704 which gives me 4 analog lines.
They seem to work OK, especially for analog phones. They also seem to work for some data/modem applications, like fire alarm panels or credit card readers, but fax appears to be a constant, unsolvable problem so far.
Has anyone been successful in installing these kind of setup for faxes?
What I get is faxes seem to go through internally from station to station, but sending or receiving to/from external faxes winds up in a "communication failure" sort of message.
I may have to tweak jitter buffer and other QOS settings (or some other settings), but don't even know where to start.
They seem to work OK, especially for analog phones. They also seem to work for some data/modem applications, like fire alarm panels or credit card readers, but fax appears to be a constant, unsolvable problem so far.
Has anyone been successful in installing these kind of setup for faxes?
What I get is faxes seem to go through internally from station to station, but sending or receiving to/from external faxes winds up in a "communication failure" sort of message.
I may have to tweak jitter buffer and other QOS settings (or some other settings), but don't even know where to start.
