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Configuring FXO or FXS Voice Ports

Configuring Voice over IP for Cisco MC3810 Series Concentrators 17

• Conﬁguring E&M Voice Ports

• Fine-Tuning E&M Voice Ports

• Activating the Voice Port

Conﬁguring FXO or FXS Voice Ports

Under most circumstances the default values are adequate for FXO and FXS voice ports.

Task List

If you need to change the default conﬁguration for these voice ports, perform the following tasks:

1 Conﬁgure the applicable parameters for the voice port.

2 Verify the conﬁguration.

3 Troubleshoot and correct any conﬁguration errors.

Conﬁguration Procedure

To conﬁgure FXO and FXS voice ports, enter the following commands, beginning in global

conﬁguration mode. Commands apply to both analog and digital voice ports unless otherwise

indicated.

Step Command Purpose

router(config)# voice-port

slot/port

Identify the voice port you want to conﬁgure and enter voice-port

conﬁguration mode.

router(config-voice-port)#connection {plar |

tie-line | trunk | plar-opx}

string

Specify the voice-port connection type and the destination

telephone number.

• plar for private line auto ringdown

• tie-line for a tie-line connection to a PBX

• plar-opx for PLAR off-premises extension (the local voice

port provides a local response before the remote voice port

receives an answer)

• string speciﬁes the destination telephone number.

router(config-voice-port)#voice

confirmation-tone

If connection plar or connection plar-opx is conﬁgured, enable

the two-beep conﬁrmation tone that a caller hears when picking

up the handset.

router(config-voice-port)#dial-type {dtmf |

pulse}

If you are conﬁguring for rotary dialing, select pulse as the

out-dialing type. The default is touch-tone (dtmf).

Out-dialing type is not applicable on FXS voice ports.

router(config-voice-port)#signal {loop-start |

ground-start}

(Analog only) Select the appropriate signaling type.

router(config-voice-port)#cptone

country

Select the appropriate call progress tone for your country

location.

The default is northamerica. For a list of supported countries,

refer to the Voice, Video, and Home Applications Command

Reference.

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