I have small issue with VG202 customer has CM 6.1.3. I configured this VG202 with SCCP. New fax machines in and out works fine but some old fax machine outbound works fine but not inbound it just rings and rings.
In Call Manager Fax relay is enabled and Modem passthrough is disabled.
When the fax machine rings, if you manually pick it up does the call work?
If you put an analog phone where the fax machine is, does it work?
If you call the fax machine from an IP phone, does it pick up at all?
This may not be related to fax at all. Some older telephony devices require a larger ring voltage associated with a higher voltage from older telephony days, and do not detect the ringing voltage of new digital devices. There are third party devices made by companies called 'ring boosters' that will increase the ring voltage.
Thanks for your response. I did called from an IP phone it just rings and rings and there is no option to pick up a call from fax but it work's if I connect an analog phone or to a new fax machine. Just this old fax machine to be particular OKI Data Express 5600 (I think!) is not working.
This sam efax machines work if I connect to a ATA though ..does this help if it works on ATA it should work on VG202 or do you still think it may be an voltage issue.
It doesn't look like the ATA lists it's ringing voltage, but it's quite possibly just a bit higher. There is a card called the VIC3-2FXS/DID-E that was released for analog devices because it was able to offer higher voltages and currents for legacy devices.
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The short answer is that you don't.... That isn't entirely true while at
the same time it kind of is, but for the most part you don't configure
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