From: http://www.livingston.com/Tech/Appnotes/app.ISDN-5bri-faq.shtml
Can you force a certain connection rate for an outgoing call?
A: Yes. For example to force a 56K connection use:
command> set s10 speed 56000
or, to force a 56K dial out:
command> AT&N56DT5551212
--- |Douglas ``Wildcat'' Warren |Email: dwarren@netusa.net| Jura gur tbireazrag |Network/Security Consultant|Phone: (516) 543-0234 | bhgynjf Pelcgbtencul, |President of SBCS a chapter| Fax: (516) 543-0274 | bayl pevzvanyf jvyy |of the ACM. | PGP: finger dwarren | unir cevinpl