[cisco-voip] RP Wildcards A,B,C,D

[Wes Sisk]

while technically valid digits, i've never seen them used in  
numbers.  I suspect digging in Q.24 (dtmf) and/or 464 might give some  
indicators of why - maybe not valid routes similar to 10.x.x.x in the  
IP world.  but enough supposition.

The places I have frequently seen A,B,C, and D are:
transcription machines - there are several transctiption machines  
that come with foot petals that send A/B dtmf to scroll forward/ 
backward in conversation.
OctelNet - octel networking makes heavy use of ABCD

/Wes

On Nov 3, 2006, at 6:18 PM, Jonathan Charles wrote:

Yep, I just tried it with CCM 4.2(3) and it failed horrifically:

"Directory Number contains one or more invalid characters. Valid  
characters for Directory Number are
numbers, the letter X, dashes and the following character(s):

* # [ ^ ] + ? !"

I guess all those IPT gurus on this board who keep saying it works  
never tried it either...

I tried it on a CTI Route Point and a CTI port...




Jonathan


On 11/3/06, Fred Nielsen <fwn at feasible.net> wrote:
A, B, C and D are valid DTMF "digits" with their own tones... imagine  
another column of four more keys on the right hand side of your  
existing keypad with A - D running top to bottom.  This column has  
its own tone in the "Dual-Tone Multiple Frequency" setup, and uses  
the same row tone as that used by the digits you are already familiar  
with, combined to make a dual-tone like every other digit.

They were principally used on the U.S. DOD AUTOVON private telephone  
network to signal priority.  A call preceded by an A (flash override,  
the highest priority) would preempt any calls on congested trunks  
with lower priorities.  The remaining three digits represented lower  
levels of priority, and a call with no digits preceding was deemed  
"routine" with the lowest priority of all.  Telephone carriers  
companies used to also use them for various signal indications back  
when analog trunks were still fairly prevalent.

Sometimes you will see technician buttsets with A-D keys on them  
still.  Kinda neat.

-- Fred Nielsen

From: cisco-voip-bounces at puck.nether.net [mailto:cisco-voip- 
bounces at puck.nether.net] On Behalf Of Lelio Fulgenzi
Sent: Friday, November 03, 2006 1:51 PM
To: Howard, Chad; cisco-voip at puck.nether.net
Subject: Re: [cisco-voip] RP Wildcards A,B,C,D

someone told me once they are used in military communications. top  
secret stuff i guess.

------------------------------------------------------------------------ 
--------
Lelio Fulgenzi, B.A.
Senior Analyst (CCS) * University of Guelph * Guelph, Ontario N1G 2W1
(519) 824-4120 x56354 (519) 767-1060 FAX (JNHN)
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----- Original Message -----
From: Howard, Chad
To: cisco-voip at puck.nether.net
Sent: Friday, November 03, 2006 4:08 PM
Subject: [cisco-voip] RP Wildcards A,B,C,D

Anyone know what the route pattern wildards A, B, C, D are used for ?

The docs I've found so far say they're valid characters, but they  
aren't listed in the wildcard explanations.

Thanks.
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