We have Asterisk in the home office, but it's meeting some resistance due to an issue of speed and reliability. We use one of the alternate long distance providers (worldline.ca), where we dial a local number, hear a voice announcement, then a dial tone, and dial the 10-digit number.

With a POTS line, one can start sending DTMF to these services as soon as the voice announcement comes on, and it will *instantly* detect the DTMF, stop yapping, skip the dialone, and dial the number for you.

Withing Asterisk, using both Unistim and SIP phones, we can't dial anything until the dialtone comes along (slow), and, even then, it doesn't get all 10 digits about 1/2 the time, so it's unreliable.

Do other people using this type of service from Asterisk have this issue, or have I bunged something in the configuration of my external ATA, or is the ATA itself (GS BT488) likely to be the issue?

Thanks!

P.S. Using an external ATA instead of using the TDM400 I have sitting here because I'm running * on a low-power pc that doesn't have ANY PCI slots. My first attempt to build a low-powered PC (mini-ITX with a PCI slot) has ended in hardware problems for the time being; better hardware is being ordered.

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