1813 VoIP Gateway User’s Guide
Config Host
Enter or select the SIP host parameters:
Interface Choose an interface over which the SIP host will transmit /receive the
SIP messages. The WAN interface is mandatory and there are no
other selectable options.
Transport Choose the transport protocol. It can be either UDP or TCP. The
default is UDP. Presently only UDP is supported.
Max Digits The limited maximum number of digits allowed.
Port No Port number of user-agent where it receives the SIP messages. The
default port number is 5060, which is a well-known port for SIP
protocol.
Use Proxy Choose YES if a Proxy or Registrar server will be used. Also
configure the Proxy Info and Registrar. Choose No if a
Proxy/Registrar server won’t be used. With this setting, the proxy and
registrar information will be ignored.
Config Proxy/ Registrar
This section configures the proxy server IP address and port number. A proxy is an intermediary
program that acts as both a server and a client for the purpose of making requests on behalf of
other clients. Requests are serviced internally or transferred to other servers. A proxy interprets
and, if necessary, rewrites a request message before forwarding it.
• Host Addr: IP address of the SIP proxy server, used for VOIP service.
• Port No: Port number of the SIP-Proxy server. The default port number is 5060.
Domain Information
This section configures the Registrar Server IP address and port number. A Registrar server
accepts REGISTER requests. A registrar is typically collocated with a Proxy or Redirect server
and may offer location services. The Registrar saves information about where a party can be
found.
• Domain: domain name of the SIP Registrar server.
CODECs Information
This section configures the Codecs to be supported for the configured User-Agent. PCMU (u-
law), PCMA (a-law), and G.729 are the codecs which can be selected. Multiple items can be
checked. The final CODEC is up to the negotiation with the party or SIP proxy.
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