[mod.telecom] 10xxx service

NBaheti.es@PARC-MAXC.ARPA (02/01/86)

     How exactly does the 10xxx method work?  I know it is only
available on ESS networks (the other spits it back out) and it is for
using an ALDS.  Could I, for instance, use it like so: I chose AT&T,
but would like to use MCI for a certain call; I dial 10xxx (xxx being
MCI's ALDS I.D. code #), then the areacode and number? Or would I have
to have chosen MCI as my carrier to do this?  This would be ideal, as
I could flip-flop between companies depending on their rates while
still keeping AT&T for normal useage.  Also, is there a list of the
10xxx codes that I can choose from get somewhere?  Thanks in advance
for your help...

[Most ALDS' who have billing arrangements with the local telco 
 will allow you to place calls through them via 10XXX dialing, even
 if you have not chosen them as your primary carrier.  SBS, whose 
 rates are typically significantly lower, does not. -elmo]

--Arun Baheti
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