I've got an Asterisk PBX with a Wildcard TDM400P (2x FXS, 2x FXO). When I connect an older (circa 1984) Nortel Harmony phone - the first phone Bell Canada offered with an electronic ringer as opposed to a bell - I get normal ringing (sorry I don't know the REN rating of this phone...). When I connect my personal cordless (VTech, 0.3 REN) I get normal ringing. If I connect the GE cordless models I've been asked to use (0.1 REN) they normally will not ring... they light up and indicate there's an incoming call and once or twice I've received 1/2 - 3/4 of a ring but never a complete ring or multiple rings. When connected directly to my incoming lines they ring normally. Normally I'd assume this was a power problem but at 0.1 REN?? Any other ideas I can try? Thanks, Ian Ian Pattison, Senior Analyst Technology Associates Inc. Tel: 905-459-2100 ext. 204 Mobile: 416-568-6548 E-mail: ianp@technologyassociates.ca -------------- next part -------------- BEGIN:VCARD VERSION:2.1 N:Pattison;Ian FN:Ian Pattison ORG:Technology Associates Inc. ADR:;;9052 Creditview Rd.;Brampton;Ontario;L6V 1A1;Canada TEL;WORK:416-657-2464 TEL;WORK:905-459-2100 TEL;CELL:416-568-6548 EMAIL:ianp@technologyassociates.ca END:VCARD
Ian Pattison wrote:> ringing. If I connect the GE cordless models I've been asked to use (0.1 > REN) they normally will not ring... they light up and indicate there's > an incoming call and once or twice I've received 1/2 - 3/4 of a ring but > never a complete ring or multiple rings. When connected directly to my > incoming lines they ring normally. > > Normally I'd assume this was a power problem but at 0.1 REN?? Any other > ideas I can try? >Try adding the module parameter boostringer=1 when loading the wctdm driver. This raises the ringing volts to 89V peak. Regards, Richard
Ok... I've done a bit of emperical testing but don't really know what
the results mean. I'm starting to think I need an oscilloscope to measure
this properly. All I have is a DMM, I'm measuring on both the AC and DC
scales...
AC Measurement DC Measurement
On-hook 107V 49V
Off-hook 11V 6V
Ring drops to 44V 0V
Does this make any sense to anyone?
Thanks,
Ian
>>> r.scobie@clear.net.nz 04/01/05 3:24 PM >>>
Ian Pattison wrote:
> ringing. If I connect the GE cordless models I've been asked to use
(0.1
> REN) they normally will not ring... they light up and indicate there's
> an incoming call and once or twice I've received 1/2 - 3/4 of a ring
but
> never a complete ring or multiple rings. When connected directly to my
> incoming lines they ring normally.
>
> Normally I'd assume this was a power problem but at 0.1 REN?? Any other
> ideas I can try?
>
Try adding the module parameter boostringer=1 when loading the wctdm
driver. This raises the ringing volts to 89V peak.
Regards,
Richard
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Ok... I've done a bit of emperical testing but don't really know what
the results mean. I'm starting to think I need an oscilloscope to measure
this properly. All I have is a DMM, I'm measuring on both the AC and DC
scales...
Digium FXS Port
AC Measurement DC Measurement
On-hook 107V 49V
Off-hook 11V 6V
Ring drops to 44V 0V
Direct from Bell Canada
AC Measurement DC Measurement
On-hook 0V 44V
Off-hook 0V 6V
Ring 44V 0V
Does this make any sense to anyone?
Thanks,
Ian
Ian Pattison, Senior Analyst
Technology Associates Inc.
Tel: 905-459-2100 ext. 204
Mobile: 416-568-6548
E-mail: ianp@technologyassociates.ca >>> r.scobie@clear.net.nz 04/01/05 3:24 PM >>>
Ian Pattison wrote:
> ringing. If I connect the GE cordless models I've been asked to use
(0.1
> REN) they normally will not ring... they light up and indicate there's
> an incoming call and once or twice I've received 1/2 - 3/4 of a ring
but
> never a complete ring or multiple rings. When connected directly to my
> incoming lines they ring normally.
>
> Normally I'd assume this was a power problem but at 0.1 REN?? Any other
> ideas I can try?
>
Try adding the module parameter boostringer=1 when loading the wctdm
driver. This raises the ringing volts to 89V peak.
Regards,
Richard
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