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Cisco ATA 186 and Cisco ATA 188 Analog Telephone Adaptor Administrator’s Guide (H.323)
OL-4008-01
Chapter 5 Parameters and Defaults
Optional Feature Parameters
For example, to enter an interdigit timeout of 12 seconds and discard dialed digits unless 911 is entered,
you would use the following command:
Ic| 911
Specifying your own interdigit timeout also changes the behavior of the dial plan so that the entire dial
string, rather than being sent at timeout, is sent only as a result of a matching rule or time intended by a
matching rule.
'H' Rule to Support Hotline/Warmline
Hotline/Warmline, also known as Private Line Automatic Ringdown (PLAR), is a line used for priority
telephone service. If the Hotline feature is configured, the Cisco ATA immediately dials a pre-configured
number as soon as the handset goes off hook. If the Warmline feature is configured, the Cisco ATA dials a
pre-configured number if no digits were entered before the specified timer value expired when the handset
went off hook.
Syntax
Hdnnnn
where d is a delay-in-seconds parameter 0-9,a-z (to support 0 to 35 seconds delay), and nnnn is the
variable-length phone number to call when no digits are entered for d seconds after the handset goes off
hook.
• Example 1: H05551212 (Hotline configuration; the Cisco ATA immediately dials 555-1212 when the
handset goes off hook.)
• Example 2: H55551212 (Warmline configuration; the Cisco ATA waits for five seconds and dials
555-1212 if no digits were entered when the handset went off hook.)
'P' Rule to Support Dial Prefix
This rule is for automatic pre-pending the dial string as entered by the user with a specified prefix.
Syntax
Ptnnnn
where t is a single leading trigger character; if t is the first entered digit when making a new call, it
triggers the prepending of a variable-length prefix (as specified by nnnn) in the dial string. The t
character can take one of the following values:
0-9,*,#, 'n' (= any of 1-9), 'N' (any of 'n' and 0), 'a' (any of 'n',* and #), or 'A' (any of 'a' and 0);
Example:
Pn12345: Prepends 12345 to the dial string when the first entered digit is any of 1-9. The triggered digit
is not removed from the dial string.