To assign a called party number to a pool of modems, use thecalled-number modem pool configuration command. Use the no form of this command to remove a number from a modem pool.
called-number number [max-conn number]
no called-number number [max-conn number]
number Called number for a modem pool.
max-conn number (Optional) Maximum number of simultaneous connections allowed for the called party number.
Disabled
Modem pool configuration
| Release | Modification | 11.2 P | This command was introduced. |
|---|
A called party number is a telephone number that is used to reach a remote destination. For example, a mobile laptop dials a called party number to reach an ISP's POP. Some ISPs set up several called party numbers to enable remote clients to dial in, but to the end user, it appears and functions as one unified service.
Cisco's implementation of a called party number is based on the dialed number identification service (DNIS). You can configure multiple DNIS numbers in a single modem pool. However, the same DNIS number cannot be used in multiple modem pools. Each modem pool must be assigned different DNIS numbers.
Use the max-conn option to provide overflow protection, which specifies a maximum number of simultaneous connections that a called party number can consume. For example, if you create one modem pool to serve two or more services or customers, this option guarantees how many modems each service or customer can have access to at any given time.
The Cisco IOS software also includes a feature that simplifies the called number configuration. By using an x variable as the last digit in a called telephone number (for example, issuing the called-number 408555121x command), clients dialing different called numbers such as 4085551214 or 4085551215 will automatically be sent to the same modem pool. The x variable is a floating place holder for digits 1 through 9.
Modem pools using MICA or Microcom modems support incoming analog calls over ISDN PRI. However, only MICA modems support modem pooling for CT1 and CE1 configurations with channel associated signaling.
In the following example, the modem pool called v90service is virtually partitioned between two customers using different DNIS numbers. The pool-range command assigns modems 1 to 110 to the shared modem pool. The called-number 5551212 max-conn 55 command assigns the DNIS number 5551212 to the v90service modem pool. The total number of simultaneous connections is limited to 55. The called-number 4441212 max-conn 55 command assigns the DNIS number 4441212, which is for a different customer, to the same v90service modem pool. The total number of simultaneous connections is also set to 55.
as5300# configure terminal Enter configuration commands, one per line. End with CNTL/Z. as5300(config)# modem-pool v90service as5300(config-modem-pool)# pool-range 1-110 as5300(config-modem-pool)# called-number 5551212 max-conn 55 as5300(config-modem-pool)# called-number 4441212 max-conn 55 as5300(config-modem-pool)# exit as5300(config)#
The following configuration rejects the pool-range 30 command because modem TTY line 30 is already a member of the modem pool v90service, which was configured in the previous example. Each modem in the access server is automatically assigned to a unique TTY line. TTY line numbers are assigned according to your shelf, slot, or port hardware configuration.
as5300(config)#modem-pool v34service as5300(config-modem-pool)#pool-range 30 % TTY 30 is already in another pool.
| Command | Description |
|---|---|
| clear modempool-counters | Clears active or running counters associated with one or more modem pools. |
| modem-pool | Creates a new modem pool or specifies an existing modem pool, which allows you to physically or virtually partition your access server for dial-in and dial-out access. |
| pool-range | Assigns a range of modems to a modem pool. |
| show modem-pool | Displays the configuration and connection status for one or more modem pools. |
Printed for apswan@ctr.ap.nic.in on Wed Mar 5 22:32:57 PST 2003
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