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Figure 663 Proxy server configuration page
Table 241 Configuration items
Item Description
Use Server Group
Select a server group from the list as the proxy server. You can add a server
group on the page that can be accessed by selecting
Voice Management
>
Call Connection
>
SIP Server Group Management
from the navigation tree.
Transport Layer Protocol
for SIP Calls
• UDP—Apply the UDP transport layer protocol when the device initiates a
call.
• TCP—Apply the TCP transport layer protocol when the device initiates a
call.
• TLS—Apply the TLS transport layer protocol when the device initiates a
call.
By default, the UDP protocol is applied.
URL Scheme
• SIP—Specify the SIP scheme as the URL scheme.
• SIPS—Specify the SIPS scheme as the URL scheme.
By default, the SIP scheme is applied.
Proxy Server Address Specify the IP address or a domain name of the proxy server.
Proxy Server Port
Number
Specify the port number of the proxy server.
Configuring session properties
Select Voice Management > Call Connection > SIP Connection from the navigation tree, and
click the Session Properties tab to access the session properties configuration page.
Configuring source address binding
Introduction to SIP support for source IP address binding
With this function, you can specify a source IP address for SIP signaling or media streams that go out
of the gateway. SIP support for source IP address binding is implemented by binding a static IP
address or the primary IP address of an interface.
• Static IPv4 address binding—The source IP address specified for SIP calls is the bound IP
address.
• Source address interface binding—In a large network, an interface obtains its IP address
from a DHCP or PPPoE server. In this scenario, you can use this function to configure an
interface as the source of SIP signaling and media streams to avoid manual IP address
configuration, and therefore help network management.
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