TELECOM Digest OnLine - Sorted: Touch Tone vs. Rotary -- Desk vs. Wall Sets ?

Touch Tone vs. Rotary -- Desk vs. Wall Sets ?

hancock4@bbs.cpcn.com
25 May 2007 10:08:18 -0700

When Touch Tone dialing was introduced, the Bell System came out with
newly designed desk and wall telephone sets to accomodate the
keypad.

The desk set (dial 500, TT 1500/2500) became fatter and higher to
accomodate the tone pad. However, the wall set (dial 554, TT
1554/2554) became slimmer.

So, I was wondering why the desk set became bigger while the wall set
became smaller to accomodate Touch Tone? Anybody know?

[public replies, please]

P.S. While we're on the subject, would anyone know what percentage of
lines are still served by exclusively dial equipment? I don't think
they charge a premium for TT anymore. Also, many people have some old
rotary sets still in service (like me) even if their primary sets are
TT.

Thanks!

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