I am familiar with the Aspire/UX/SV8100 line of NEC products but have a customer who is having an issue intermittently sending the ** DTMF signal to their Viking C2000B Door Controller to engage the relay. Is there a way to extend the DTMF tone the system sends out on the CO port. If so could someone please send me the programming codes required? Appreciate it.

Anthony Cascarelli

ARG Communications, Inc.
Wilmington, DE 190805