AltiGen comm ACM 5.1 manual Router 1s Setting, Local Secure Group, Remote Secure Group

Chapter 24: Network Configuration Guidelines for VoIP

When configuring the remote IP phones—IP Phone 3, IP Phone 4, and IP Phone 5— you should set up the AW address to use AltiServ’s IP address.

For the VPN Tunnel between the Two Private Networks:

You must set up a VPN tunnel to connect the two private networks. The VPN setup procedure may be complicated and is generally performed by a professional IT technician.

The following minimum guidelines need to be considered for setting up the VPN tunnel:

•WAN Bandwidth—should be greater than the aggregate of maximum VoIP session bandwidth usage. Each G.711 codec requires 17 Kbps and each G.723.1 codec requires 85 Kbps.

•QoS—if the IP WAN network provides QoS (Quality of Service), it should be configured to honor VoIP RTP packet transmission.

An easy example for a VPN resolution is with the Linksys EtherFast VPN router1. Router 1 and Router 2 are routers supporting VPN. When configuring these VPN routers, the following information is needed. (Also, please refer to the Router's User Guide for more detailed information.)

Router 1's Setting

Local Secure Group:

(specifies the local network which can access the VPN tunnel at the corporate network)

Remote Secure Group:

(specifies the remote network which can access the VPN tunnel at the branch office network)

Remote Security

Gateway:

(specifies the public IP address of the remote gateway which can access the VPN tunnel at the branch office)

Subnet IP:	Subnet Mask:
192.168.1.0	255.255.255.0A
(Corporate Network)
Subnet IP:	Subnet Mask:
192.168.2.0	255.255.255.0A
(Branch Office
Network)
63.224.32.34
(Router 2’s public IP
Address

1Linksys is for reference only. AltiGen has not certified this product or any other router at this time.

320AltiWare ACM 5.1 Administration Manual