‘..
.--
.-
SECTION MITL91 OS/91 1
O-096-350-NA
ON SPEECH
I
RcvR
I
DECODES DIGITS
FOR CPU
IF NECESSARY. CPU
INFORMS TRUNK CARD
TO
OUTPULSE
DIAL PULSES
CORRESPONDING TO TONES
X1716Rl
Figure 5-4 Outside Call
-
0 and 1 Dialing Restriction
something other than a 0, 1,
#
or
++
the call will be allowed. The
receiver will be dropped at this point if tone-to-pulse conversion is
not required (see paragraph 5.03).
5.07
For an outside call with SMDR, Multi-Digit Toll Control or ARS
in effect (Figure
S-S),
the extension must first successfully ac-
cess a speech path (paragraph 5.02). The CPU must find a free trunk
according to the access code’dialed, and that extension’s COS (unless
ARS is in effect). If there is not a free trunk, busy tone will be returned
from the Tone Control card. If the access code dialed is not in the
extension’s COS, reorder tone will be returned from the Tone Control
card. If the ARS is in effect, digits dialed will be compiled in a receiver
buffer until the entire number has
.been
collected. The receiver will
decode all digits for the CPU until the last digit or a maximum of 26
digits is dialed. In the case of SMDR all digits dialed will be stored in a
trunk buffer until they may be output to a recording device. lf ARS is in
effect, the CPU will consult the RAM as to the correct route (trunk
group) to select (subject to time, availability and preference). The CPU
will cause the receiver to inform the trunk selected of the digits to -be
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