Cisco MC3810-APM-FXO= Datasheet download pdf (Page 17)

Configuring Voice Ports

Analog Voice Ports Configuration Task List

VC-51

Cisco IOS Voice, Video, and Fax Configuration Guide

Step 4

Router(config)# pots disconnect-supervision {osi |

reversal}

(Optional) Specifies how the router notifies the

connected telephones, fax machines, or modems

when the calling party has disconnect. The keywords

are as follows:

• osi—(open switching interval) Specifies the

duration for which DC voltage applied between

tip and ring conductors of a telephone port is

removed.

• reversal—Specifies the polarity reversal of the

tip and ring conductors of a telephone port.

The default depends on the country chosen in the

pots country command.

Step 5

Router(config)# pots encoding {alaw | ulaw}

(Optional) Specifies the pulse code modulation

(PCM) encoding scheme for telephones, fax

machines, or modems connected to a Cisco 800

series router. The keywords are as follows:

• alaw—Specifies the ITU-T PCM encoding

scheme used to represent analog voice samples

as digital values.

• ulaw—Specifies the North American PCM

encoding scheme used to represent analog voice

samples as digital values.

The default depends on the country chosen in the

pots country command.

Step 6

Router(config)# pots tone-source {local | remote}

(Optional) Specifies the source of dial, ringback,

and busy tones for telephones, fax machines, or

modems connected to a Cisco 800 series router. The

keywords are as follows:

• local—(default) Specifies that the router

supplies the tones.

• remote—Specifies that the telephone switch

supplies the tones.

Step 7

Router(config)# pots ringing-freq {20Hz | 25Hz |

50Hz}

(Optional) Specifies the frequency at which

telephones, fax machines, or modems connected to a

Cisco 800 series router ring. The keywords are as

follows:

• 20Hz—Indicates that connected devices ring at

20 Hz.

• 25Hz—Indicates that connected devices ring at

25 Hz.

• 50Hz—Indicates that connected devices ring at

50 Hz.

The default depends on the country chosen in the

pots country command.

Command Purpose

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