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The maximum number of digit map that can be stored in OM is 60. Each rule can hold not more than
32 numbers and 38 characters. The total length of digit map table (the total length of all digit map)
cannot be more than 2280 bytes.
The default typical rules include constituent rules of domestic phone numbers and function keys used
by the OM. Users can add new rules as required. Basic symbols in typical rules are as follows. The
following table provides a description of typical rules:
Basic symbols:
z
0–9, *, #: the numbers from 0 to 9 and the signs * and # are the permitted dialing characters.
z
x: the x sign can match with any numbers. For example, the x sign can match with 1 or 2.
z
.: the “.” sign can match with multiple values. For example, the value 1. can match with 11 or
123.
z
[]: defines subsets of the match character. For example, the value [1-3, 5, 7-9] indicates a value
among 1, 2, 3, 5, 7, 8, and 9.
z
T: indicates the dialing event ends due to timeout. For example, the value x.T indicates that a
user dials multiple numbers and the dialing events time out. Then the system considers that the
dialing events end.
Table 2-29
Description of Digit map
Digit map
Description
“##”
End after receiving two-digit dialing “##”. “##” is an special dialing
for users to query IP address and version number of firmware by
default.
“x.T”
The OMs will detect any length of telephone number starting with any
number between 0-9. The OMs will send the detected number when it
has exceeded the dialing end time set in system parameter
configuration and hasn’t received a new number.
“x.#”
Any length of telephone number starting with any number between
0-9. If users press # key after dial-up, the OMs will immediately end
up receiving numbers and send all the numbers before # key.
“*xx”
End after receiving * and any two-digit number. "* xx" is primarily
used to activate function keys for extension features, such as CRBT,
Call Transfer, Do not Disturb, etc.
“#xx”
End after receiving # and any two-digit number. “#xx” is primarily
used to stop function keys for extension features, such as CRBT, Call
Transfer, Do not Disturb, etc.
[2-8]xxxxxx
A 7-digit number starting with of any number between 2-8, used to end
the dialing.
02xxxxxxxxx
An 11-digit number starting with 02, used to end the dialing starting
with “02”.
13xxxxxxxxx
An 11-digit number starting with 13, used to end the dialing.
11x
A 3-digit number starting with 11, used to end the special service calls.
9xxxx
A 5-digit number starting with 9, used to end special calls.
2.7.7
Tie trunk
The tie trunk of OM is an IP trunk based on SIP protocol, and it is used to connect more than two
OMs via IP network. Abbreviated dialing, call transfer and other functions among different
extensions of the OM can be achieved in such an OM group. Tie trunk is usually used for: 1)
corporate non-local tie trunk; 2) system expansion. A specific example is used to explain the
application of tie trunk following the introduction of parameter configuration of tie trunk below.
After login, click “Advanced > Tie trunk” tab to open the configuration interface.
