On Jan 11, 2005, at 11:42 AM, Jim Van Meggelen wrote:
Peter Svensson wrote:On Tue, 11 Jan 2005, Jim Van Meggelen wrote:[EMAIL PROTECTED] wrote:I'm trying to connect a TDM400P with an FXS module to a Valcom V-9940 Paging adaptor. This port on the TDM400P was connected to a 2500 Set and was working I just re-connected it to the Valcom (which is known to work on a Telco POTS line) and its not picking up. The Valcom docs say it need a minimum of 75 Volts at 20-30 Hz to recognize a call... So the question is what ring voltage does the FXS modules on a TDM400P put out?
Ultimately, that depends on how much current is being drawn, but my multimeter reports about 70V on a 6 foot line cord. Generally, I'd expect an FXS to put out more like 90-110V (that's what my TalkSwitch supplies).
The ring voltage can be configured. Try setting the module parameter "boostringer" when the wctdm module is insmod / modprobed.
Which is accomplished in 1.0.x by the following:
# modprobe wcfxs boostringer=1
And in CVS HEAD (I assume, as I haven't tested this) by:
# modprobe wctdm boostringer=1
Who, exactly, Boo Stringer is has not yet been determined.
Boo Radley? NO, Boo Stringer.
(Sorry for the pun, folks, but I will now never forget this parameter name).
Or adding the line: options wctdm boostringer=1
to the file /etc/modules.conf
Thank you to all who replied, I will be trying this out as soon as I can down the system to reload the modules.
Later; Tim
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