Cisco MC3810-APM-FXO= Datasheet download pdf (Page 43)

Configuring Voice Ports

Configuring Digital Voice Ports

VC-77

Cisco IOS Voice, Video, and Fax Configuration Guide

Step 3

Router(config-voiceport)# cptone

locale

Selects a two-letter locale keyword for the voice

call progress tones and other locale-specific

parameters to be used on this voice port. Voice call

progress tones include dial tone, busy tone, and

ringback tone, which vary with geographical

region.

Other parameters include ring cadence and

compand type. Cisco routers comply with the

ISO3166 locale name standards; to see valid

choices, enter a question mark (?) following the

cptone command.

The default is us.

Step 4

Router(config-voiceport)# compand-type {u-law | a-law}

(Cisco 2600 and 3600 series routers and

Cisco MC3810 multiservice concentrators only)

Specifies the companding standard used. This

command is used in cases when the DSP is not

used, such as local cross-connects, and overwrites

the compand-type value set by the cptone

command. The keywords are as follows:

• a-law—Specifies the ITU-T PCM a-law

companding standard used primarily in

Europe. The default for E1 is a-law.

• u-law—Specifies the ITU-T PCM mu-law

companding standard used in North America

and Japan. The default for T1 is u-law.

Note If you have a Cisco MC3810 multiservice

concentrator or Cisco 3660 router, the

compand-type a-law command must be

configured on the analog ports only. The

Cisco 2660, 3620, and 3640 routers do not

require the compand-type a-law

command configured, however, if you

request a list of commands, the

compand-type a-law command will

display.

Step 5

Cisco 2600 series and 3600 series

Router(config-voiceport)# ring frequency {25 | 50}

Cisco MC3810

Router(config-voiceport)# ring frequency {20 | 30}

(FXS only) Selects the ring frequency, in hertz,

used on the FXS interface. This number must

match the connected telephony equipment, and

can be country-dependent. If not set properly, the

attached telephony device may not ring or it may

buzz.

The default is 25 on the Cisco 2600 and 3600

series routers and 20 on the Cisco MC3810

multiservice concentrators.

Command Purpose

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