USER’S MANUAL
Section 7: ISDN BASICS 136
You
must
have
this
number,
and
it
must
be
100%
correct,
or
the
system
won’t
work.
Don’t
let
the
installer
depart
without
leaving
them.
You’ve
been
warned!
h
HOT TIP!
Most phone companies in the USA have settled on a standardized SPID format, based on the
telephone number. This format is area code+7 digit phone 0101. For example, if
your phone number was (321) 555-1234 then your SPID would be 32155512340101.
For a list of known working SPID formats, listed by telephone company, see Appendix 4
(Known Working SPIDs by Telephone Company).
i
ISDN TIP!
In an emergency, to save a remote, you
might
be able to get a line to work without the proper
SPIDs by dialing into it. If it works, this fix is only temporary, and the line will fail to
initialize next time the Zephyr Xstream is booted.
i
ISDN TIP!
If you see SPID ERROR as your line status, your SPID for that channel is incorrect. In this
case check the SPID. For a list of known working SPID formats listed by telephone company
see Appendix 4 (Known Working SPIDs by Telephone Company).
Directory Numbers (DNs) and Multiple Subscriber Numbers (MSNs)
Directory
Numbers
Directory
Numbers,
or
DNs
for
short,
are
the
7
digit
telephone
numbers
assigned
to
the
ISDN
lines
(as
would
typically
found
in
the
telephone
directory
)
in
the
USA
&
Canada.
You
may
be
assigned
one
or
two,
depending
upon
the
line
configuration.
In
the
case
where
you
have
two
active
ISDN
B
channels,
you
will
usually
have
two
DNs
(but
not
always).
However,
the
"physical"
channels
(i.e.
“time
slots”)
are
independent
from
the
"logical"
numbers.
A
call
coming
in
on
the
second
number
will
be
assigned
the
first
physical
B
channel,
if
it
is
not
already
occupied.
Therefore,
there
must
be
some
way
for
the
Zephyr
Xstream
to
sort
out
which
call
goes
to
which
channel/line.
The
DN
is
used
for
this
function
when
the
USA
ISDN
protocols
are
used.
When
a
call
rings
in,
it
contains
set
‐
up
information,
which
includes
the
DN
that
was
dialed
by
the
originating
caller.
The
last
4
digits
are
matched
with
the
DNs
programmed
into
the
Zephyr
Xstream,
and
the
proper
assignment
is
made.
Therefore,
problems
with
Directory
Numbers
will
virtually
always
be
difficulties
related
to
receiving
calls.
Summary of Contents for Zephyr Xstream
Page 2: ......
Page 26: ...USER S MANUAL Section 1 QUICK RESULTS 14...
Page 30: ...USER S MANUAL Section 2 INTRODUCTION Getting to Know the Zephyr Xstream 18...
Page 70: ...USER S MANUAL Section 3 GUIDED TOUR of the HARDWARE 58...
Page 144: ...USER S MANUAL Section 6 AUDIO CODING REFERENCE 132...
Page 164: ...USER S MANUAL Section 8 LIVEWIRETM IP Audio 152...
Page 310: ...USER S MANUAL Appendix 1 Codec Interoperability Information 298...
Page 320: ...USER S MANUAL Appendix 3 ISDN Cause Phrases Values 308...
Page 324: ...USER S MANUAL Appendix 4 Known Working SPID Formats by Telco 312...
Page 356: ...USER S MANUAL Appendix 9 Modular Cable Guide 344...
