Cisco WS-X4604-GWY - VoIP Gateway Especificaciones descargar pdf (Pagina 120)

Chapter 5 Dial Plan Architecture and Configuration

Special Dial String Considerations

5-12

Cisco IP Telephony Network Design Guide

78-11103-03

Figure 5-4 Calls Across the IP WAN with Different Digit Manipulation per Path

Outbound Calls Through the PSTN

Outbound calls through the PSTN typically require only a single route pattern.

This is the PSTN trunk access code, which is usually a 9 or a 0 (zero). In North

America, configuring the route pattern 9.@ allows users to make outside calls by

dialing a 9 (most commonly used) and the 7-digit or 1+10-digit phone number.

The concept of local area codes, which was used in earlier releases of

Cisco CallManager, does not exist in Cisco CallManager Release 3.0. Local area

codes are used in some heavily populated areas but do not require dialing a 1.

When a local area code is required, the route pattern should be configured for the

specific area code without a 1. This allows Cisco CallManager to differentiate

(408) 526-XXXX

5-digit internal dialing

Secondary voice path

Prepend 1408 and

send to PSTN

Users required to dial

7 digits for intersite calls

526-1111

Primary voice path

Strip 52 and deliver

6111 to remote Cisco CallManager

IP WAN

PSTN

Gatekeeper(s)

40797

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Cisco WS-X4604-GWY - VoIP Gateway Especificaciones Pagina 120