Cisco MC3810-APM-FXO= Datasheet download pdf (Page 16)

Configuring Voice Ports

Analog Voice Ports Configuration Task List

VC-50

Cisco IOS Voice, Video, and Fax Configuration Guide

Configuring Analog Telephone Connections on Cisco 803 and 804 Routers

Multiple devices (analog telephone, fax machine, or modem) can be connected to a Cisco 803 or 804

telephone port. The number of devices that can be connected depends on the ringer equivalent number

(REN) of each device that is to be connected. (The REN can usually be found on the bottom of a device.)

The REN of the router telephone port is 5, so if the REN of each device to be connected is 1, a maximum

of five devices can be connected to that particular telephone port.

These routers support touch-tone analog telephones only; they do not support rotary telephones.

To configure standard features for analog telephone connections on Cisco 803 and 804 routers, use the

following commands in global configuration mode:

Command Purpose

Step 1

Router(config)# pots country

country

Specifies the country to use for country-specific

default settings for physical characteristics. Enter

pots country ? for a list of supported countries and

the codes to enter.

A default country is not defined.

Step 2

Router(config)# pots line-type {type1 | type2 |

type3}

(Optional) Specifies the impedance of telephones,

fax machines, or modems connected to a Cisco 800

series router. The keywords are as follows:

• type1—Specifies the resistance used for the

POTS connection, typically 600 ohms.

• type2—Specifies the resistance used for the

POTS connection, typically 900 ohms.

• type3—Specifies the resistance used for the

POTS connection, typically 300/400 ohms.

The default depends on the country chosen in the

pots country command.

Step 3

Router(config)# pots dialing-method {overlap |

enblock}

(Optional) Specifies how the router collects and

sends digits dialed on connected telephones, fax

machines, or modems. The keywords are as follows:

• overlap—Tells the router to send each digit

dialed in a separate message.

• enblock—Tells the router to collect all digits

dialed and to send the digits in one message.

The default depends on the country chosen in the

pots country command.

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