Cisco MC3810-APM-FXO= Datasheet download pdf (Page 7)

Configuring Voice Ports

Analog Voice Ports Configuration Task List

VC-41

Cisco IOS Voice, Video, and Fax Configuration Guide

Three other sections later in the chapter provide help with fine-tuning and troubleshooting:

• Fine-Tuning Analog and Digital Voice Ports, page 78

• Verifying Analog and Digital Voice-Port Configurations, page 97

• Troubleshooting Analog and Digital Voice Port Configurations, page 108

Prerequisites for Configuring Analog Voice Ports

• Obtain two- or four-wire line service from your service provider or from a PBX.

• Complete your company’s dial plan.

• Establish a working telephony network based on your company’s dial plan.

• Install at least one other network module or WAN interface card to provide the connection to the

network LAN or WAN.

• Establish a working IP and Frame Relay or ATM network. For more information about configuring

IP, refer to the Cisco IOS IP Configuration Guide, Release 12.2.

• Install appropriate voice processing and voice interface hardware on the router. See the

“Configuring Platform-Specific Analog Voice Hardware” section on page 43.

Preparing to Configure Analog Voice Ports

Before configuring an analog voice port, assemble the following information about the telephony

connection that the voice port will be making. If connecting to a PBX, it is important to understand the

PBX’s wiring scheme and timing parameters. This information should be available from your PBX

vendor or the reference manuals that accompany your PBX.

• Telephony signaling interface: FXO, FXS, or E&M

• Locale code (usually the country) for call progress tones

• If FXO, type of dialing: DTMF (touch-tone) or pulse

• If FXO, type of start signal: loop-start or ground-start

• If E&M, type: I, II, III, or V

• If E&M, type of line: two-wire or four-wire

• If E&M, type of start signal: wink, immediate, delay-dial

Table 6 should help you determine which hardware and configuration instructions are appropriate for

your situation. Table 7 on page 42 shows slot and port numbering, which differs for each of the

voice-enabled routers. More current information may be available in the release notes that accompany

the Cisco IOS software you are using.

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Cisco MC3810-APM-FXO= Datasheet Page 7