Chapter 24: Network Configuration Guidelines for VoIP
300
MAXCS ACC 6.7 Administration Manual
Configuration Guidelines for NAT
Note:
This section only applies to AltiGen IP phones or IPTalk integrated with
MaxCommunicator or MaxAgent.
The section discusses the configuration guidelines when AltiServ is behind NAT (Network
Address Translation) and communication to AltiGen IP phones, IPTalk, or another
AltiServ is over WAN. AltiGen SIP phones support NAT traversal, which does not require
special settings on the NAT router at the remote site.
Due to H.323/SIP protocol, which puts the IP address information in the TCP/IP payload,
the NAT router requires some H.323 protocol and SIP protocol implementation to
correctly handle the H.323/SIP traffic and translate the private IP address into a public
IP address. Not all NAT routers have this kind of implementation. If the NAT router does
not support H.323/SIP,
you need to check
Enable SIP NAT support
and
Enable H323
NAT support
in Enterprise Manager,
IP Networks
tab.
The following sections illustrate a private network configuration and a VPN configuration.
For information on setting up VoIP traffic forwarding for NAT and configuring AltiServ
behind NAT, see “Configuring AltiServ Behind NAT” on page 318.
Private Network Configuration Example
(MAXCS with private IP address and behind NAT)
Only the private IP address is used in a private network—the public router will not route
the packet that has a private IP address as its destination. (All IP addresses beginning
with 192.168.x.x, 10.x.x.x, or 172.16.x.x to 172.32.x.x are private IP addresses.)
Figure 135. MAXCS behind NAT
Summary of Contents for ACC 6.7
Page 16: ...2 MAXCS ACC 6 7 Administration Manual ...
Page 44: ...Chapter 2 System Requirements and Installation 30 MAXCS ACC 6 7 Administration Manual ...
Page 56: ...Chapter 3 Getting Around MaxAdministrator 42 MAXCS ACC 6 7 Administration Manual ...
Page 98: ...Chapter 6 Voice Mail Configuration 84 MAXCS ACC 6 7 Administration Manual ...
Page 108: ...Chapter 7 Auto Attendant Configuration 94 MAXCS ACC 6 7 Administration Manual ...
Page 124: ...Chapter 9 Call Recording Configuration 110 MAXCS ACC 6 7 Administration Manual ...
Page 128: ...Chapter 10 Application Extension Configuration 114 MAXCS ACC 6 7 Administration Manual ...
Page 180: ...Chapter 12 Trunk Configuration 166 MAXCS ACC 6 7 Administration Manual ...
Page 186: ...Chapter 13 In Call Routing Configuration 172 MAXCS ACC 6 7 Administration Manual ...
Page 234: ...Chapter 16 Setting Up IP Extensions 220 MAXCS ACC 6 7 Administration Manual ...
Page 246: ...Chapter 17 AltiGen IP Phone Configuration 232 MAXCS ACC 6 7 Administration Manual ...
Page 256: ...Chapter 18 Mobile Extension Configuration 242 MAXCS ACC 6 7 Administration Manual ...
Page 270: ...Chapter 19 Hunt Group Configuration 256 MAXCS ACC 6 7 Administration Manual ...
Page 274: ...Chapter 20 Paging Group Configuration 260 MAXCS ACC 6 7 Administration Manual ...
Page 370: ...Chapter 26 Redundancy Configuration 356 MAXCS ACC 6 7 Administration Manual ...
Page 404: ...Chapter 29 TAPI Integration 390 MAXCS ACC 6 7 Administration Manual ...
Page 426: ...Chapter 30 Tools and Applications 412 MAXCS ACC 6 7 Administration Manual ...
Page 448: ...434 MAXCS ACC 6 7 Administration Manual ...