[asterisk-users] Changing ring cadence on FXS lines

Tzafrir Cohen tzafrir.cohen at xorcom.com
Sun Jan 17 08:34:15 CST 2010

On Fri, Jan 15, 2010 at 04:52:15PM +0000, Noah I. Engelberth wrote:
> Is there a way I can change the ring cadence on FXS lines on a system using a Digium Wildcard TDM2400 card?  I recently deployed a new phone system, and the customer has a few POTS phones in areas where they don't have data network services, so we're using the FXS lines to provide dialtone at those outbuildings.  The old phone system would ring those phones with a short ring-short ring-pause cadence, which "sounds louder" to the users than Asterisk's default long ring-pause cadence.  I tried setting a cadence line in chan_dahdi.conf and restarting Asterisk, and typing "dahdi show cadences" in the CLI after the restart showed my custom cadence, but the phones were still ringing long ring-pause.  Can someone point me in the direction of what I'm doing wrong?

Look for the word 'cadence' in the sample chan_dahdi.conf .

Also, use DAHDI/1r3 instead of DAHDI/1 for custom ring cadence no. 3.

               Tzafrir Cohen
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