AltiGen comm ACM 5.1 manual Configuring Global Least Cost Routing

Chapter 25: Enterprise VoIP Network Management

•IP phone: The IP phone must be on hook. The user presses #27, and then inputs the global extension number and password. The global extension is then relocated to this IP phone.

If system B does not have a prior record of this extension, it will create a new extension with known information and the following settings:

•Enable IP Extension and Dynamic IP Address settings will be selected automatically (in AltiWare Administrator, Extension Configuration window).

•The newly created extension will use the default voice mail, mail forwarding, notification, call handling, restriction, and monitor list settings (AltiWare Administrator, Extension Configuration window).

Note: The administartor needs to make the proper changes for this user when the global extension is relocated by the user.

•When this Global extension user returns to his home office, all settings are stored in the REL database. The administrator does not need to change these settings when the user presses #27 to relocate the extension the next time.

Configuring Global Least Cost Routing

Global LCR allows you to save on toll charges by making long distance or international calls through a VoIP domain member system. The target system will function like a PSTN gateway for other member systems to hop-off. For example, suppose you have two systems in the U.S. and one system in the U.K. configured as VoIP domain. When users in the U.S. dial country code 44, you want the call to be dialed though the system in the U.K. to its PSTN network.

Global LCR has higher priority than local outcall routing. The system will check the Global LCR entries first before the call is handled by the local system's outcall routing rules.

Before you configure Global LCR, you need to evaluate the following conditions:

•How many concurrent calls will be routed through the target system?

•Does the target system have enough PSTN trunks to support the entire VoIP domain?

•Does the target system have enough WAN bandwidth to support system-to-system and PSTN hop-off calls?

Before you configure Global LCR, you need to make sure the following settings are properly configured in AltiWare Administrator:

•Both systems need to have the route access code configured on the Number Plan tab in System Configuration. (The user has to dial the route access code + the phone number to use Global LCR.)

•The target system needs to have the hop-off restriction reference properly configured. The reference extension is set on the Call Restriction tab in System Configuration, and then that reference extension cannot have Internal Calls Only checked on the Restriction tab of Extension Configuration.

352AltiWare ACM 5.1 Administration Manual