Pulse costs them more than Touch Tone? Why?
> As I understand the technology, there is no hardware involved, just
> _existing_ software. The switch scans every line very often (in
> milliseconds) to scan for off or on hook and to act accordingly.
> Dial pulses would be interpreted during that scan process. That
> process is needed to know when people are making or terminating a
> call so it's not going anywhere.
Dial pulsing takes longer to complete (usually) than Touch-Tone and so there is longer holding time for the equipment and software receiving the called number, and more registers have to be provided to accomodate the longer times [during which] that equipment is held up [because of] dial pulsing. Probably much less significant that in the early days of touch tone when most phones were dial pulse. The traditional backward compatibilty for the phone network requires dial puling to still be supported. Wes Leatherock snipped-for-privacy@aol.com snipped-for-privacy@yahoo.com