AT&T MERLIN LEGEND Data Manual page 55

Planning
Digital-to-Analog Modem
Pool
See "Data Hunt Groups" in this chapter.
To create a digital-to-analog modem pool, choose a data module and modem to
be paired and choose the number of pairs you want in the modem pool.
When modems and ISDN 7500B Data Modules are connected to station jacks,
an extension number is automatically assigned to each. To create a digital-to-
analog modem pool, if you have only one pair in the pool, publish the extension
number assigned to the ISDN 7500B. If you have more than one pair and the
7500Bs are assigned to a data hunt group, publish the extension for the data
hunt group.
Do not assign system lines and dedicated outside lines in the same modem
pool.
If you have more than one modem and data module pair (member) in your
modem pool, use a data hunt group to distribute incoming calls uniformly
among members in the group. A data hunt group can include up to 20
members.
Planning Form Instructions
The logical ID and exteinsion numbers for the modems and data modules
addigned to each digital-to-analog modem pool are listed on System
Form 2a, System Numbering—Station Jacks.
Record digital-to-analog modem pools on Data Form 1b, Modem Pool—
Digital to Analog.
Note: Data Form 1b provides planning space for 4 modem pools. If you are
planning more than 4 modem pools, make copies of Data Form 1b.
If the modem pool uses dedicated outside lines, get the telephone number of
the outside lines from your local telephone company.
1. Number the modem pools consecutively—starting with 1. Write the
number in the "Modem Pool Number" space at the top of each modem
pool block.
2. If you have more than one pair and members will be grouped in a data
hunt group, check the "Yes" box. You will enter the extension number
when you create the data hunt group.
3. If the modem is connected to the control unit, write the logical ID and
extension number of each ISDN 7500B Data Module in the modem pool in
the "Data Module" column. On the same line, in the "Modem column, write
the logical ID and extension number of the modem you want paired with
the data module in the first column.
If the modem is connected to a dedicated outside line, leave the "Logical
ID" space blank and write the telephone number in the "Extension"
column. Be sure not to mix dedicated outside line connections with
control unit connections.
3-11
Modem Pools