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4-14 STRATA CS ADMINISTRATOR MANUAL
BETA DOCUMENT - PRELIMINARY & CONFIDENTIAL
You may want to consider increasing the dialing service ambiguous timeout by
half-second intervals if users report intermittent problems hearing “Number not
available” when they dial out on analog or Robbed Bit T1 trunks (this is not a
problem for ISDN or IP lines).
If you increase this timeout by too much, you can introduce other problems, such
as users missing the beginning of the audio signal at the target, for example, the
beginning of an auto attendant that answers calls immediately. If this problem
occurs, you can do any of the following:
n Reduce the dialing service ambiguous timeout.
n Instruct users to enter # after dialing a number.
n Collect all digits before dialing (see page 8-10).
The Emergency tab ____________________________________
Strata CS supports two kinds of emergency dialing services—standard 911 and
Enhanced 911 (E-911).
Using standard 911 service with Strata CS
A standard 911 call does not require any additional hardware. All standard 911
calls use a Strata CS trunk and go through the local phone company to the
emergency dispatching center.
To support 911 calls in Strata CS, you must provide an emergency access code
for users to dial.
Using extended 911 service with Strata CS
An extended 911 (E-911) call includes the calling station’s ANI information (the
Strata CS station ID). This information helps the phone company’s E-911 center
identify the location of the person who made the emergency call, for example, the
specific floor and office in a large building.
An E-911 call does not use a Strata CS trunk. Typically, a dedicated trunk
connects the E-911 device directly to the emergency dispatching center.
All E-911 calls go through an E-911 device. For information about obtaining,
installing, and configuring an E-911 device, see Strata CS Installation &
Maintenance Manual.
After the E-911 device is installed and configured, you must enable E-911 and
assign E-911 stations. You assign one or more Strata CS stations for the exclusive
purpose of handling E-911 calls. An E-911 station is physically connected to a
port on the E-911 device, and can be any station that is not already assigned and
that has a valid station license.