3com IP Telecommuting Module 3CRVH702596C-UK 数据表
产品代码
3CRVH702596C-UK
OVERVIEW
The 3Com
®
IP Telecommuting Module delivers the benefits of the 3Com Convergence Applications
Suite to users connecting to the enterprise network from remote locations. With the module,
home office workers, traveling employees and other authorized users can securely access their
company IP telephony system over the Internet, taking advantage of a wealth of communications
applications utilizing the Session Initiation Protocol (SIP).
home office workers, traveling employees and other authorized users can securely access their
company IP telephony system over the Internet, taking advantage of a wealth of communications
applications utilizing the Session Initiation Protocol (SIP).
Because SIP dynamic port allocation is not recognized by conventional firewalls, the only way to
enable these firewalls for SIP traffic is to open the ports that will be used by that traffic. Unfortunately,
this action exposes the enterprise to security risks. To mitigate these vulnerabilities, the 3Com IP
Telecommuting Module provides SIP-aware security by first monitoring SIP signaling protocols,
such as SIP registration and session establishment, as they arrive over the Internet. The module
then assigns and manages the appropriate dynamic addresses by performing SIP proxy and
registrar functions. Because the registrar contains the private IP addresses of users inside the
network, an existing firewall is able to relay SIP signaling to the proper destinations through its
UDP or TCP ports.
enable these firewalls for SIP traffic is to open the ports that will be used by that traffic. Unfortunately,
this action exposes the enterprise to security risks. To mitigate these vulnerabilities, the 3Com IP
Telecommuting Module provides SIP-aware security by first monitoring SIP signaling protocols,
such as SIP registration and session establishment, as they arrive over the Internet. The module
then assigns and manages the appropriate dynamic addresses by performing SIP proxy and
registrar functions. Because the registrar contains the private IP addresses of users inside the
network, an existing firewall is able to relay SIP signaling to the proper destinations through its
UDP or TCP ports.
DATA SHEET
3COM
®
IP TELECOMMUTING
MODULE
MODULE
Extend secure business communications over the
Internet with 3Com teleworker solutions
Internet with 3Com teleworker solutions
KEY BENEFITS
ENABLE SECURE INTERNET ACCESS TO
BUSINESS NETWORKS
BUSINESS NETWORKS
The module provides access to corporate SIP-based IP
communications systems from remote locations over the
Internet while protecting other enterprise applications from
intruders. It augments existing firewalls by specifically
handling SIP-established IP media sessions while leaving the
firewalls to handle all other network traffic. Internal addresses
are concealed from the public Internet, but SIP clients inside
the firewall can be reached by public IP addresses.
communications systems from remote locations over the
Internet while protecting other enterprise applications from
intruders. It augments existing firewalls by specifically
handling SIP-established IP media sessions while leaving the
firewalls to handle all other network traffic. Internal addresses
are concealed from the public Internet, but SIP clients inside
the firewall can be reached by public IP addresses.
CONNECT FROM BEHIND REMOTE INTERNET
GATEWAYS
GATEWAYS
The module allows SIP-based communications to be
established among networks using Network Address
Translations (NAT) without disrupting the NAT infrastructure.
The module manages SIP messages to enable transparent
communications between different networks connecting via
the Internet.
established among networks using Network Address
Translations (NAT) without disrupting the NAT infrastructure.
The module manages SIP messages to enable transparent
communications between different networks connecting via
the Internet.