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From: covert@COVERT.DEC.COM.UUCP
Newsgroups: mod.telecom
Subject: Only DTMF on DID trunks
Message-ID: <8607310647.AA20618@ucbvax.Berkeley.EDU>
Date: Tue, 29-Jul-86 08:34:00 EDT
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Posted: Tue Jul 29 08:34:00 1986
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>MF signaling has clearly entered the private sector, as it has been available
>for several years in many areas from a telephone company CO on DID trunks to
>customer-owned PABX's equipped with direct inward dialing.  Clearly customers
>owning and companies maintaining such PABX's have a need to possess MF senders
>for test purposes.

Only partly true.  I have yet to see a TELCO willing to send anything but dial
pulse or DTMF (Touch-Tone) on PBX DID trunks, and in some cases even getting
that is quite difficult.  MF seems to only be used on PBX-PBX tie trunks, and
never on any PBXs from Western Electric.

/john