The page Extension SIP Settings is used to configure the extension's SIP registration settings as well as the advanced SIP settings (Outbound Proxy, Secondary SIP Server and Outbound Proxy for the Secondary SIP Server settings and to define other SIP server specific settings).
The SIP Advanced Settings page consists of the following components:
SIP Registration Settings:
RegistrationUserName requires the username used
for extension registration on the SIP server. This registration username
needs to be unique on the SIP server and will be displayed on the called
phone when performing an IP call.
Registration Password indicates the password for
the extension registration on a SIP server.
Confirm Registration Password is used to confirm
the password. If the entered registration password does not correspond to
the one given in this field, the error message"The passwords do not
match. Please try again" appears.
SIP Server indicates the host address of the SIP
server. The field is not limited regarding symbol usage and length as it can
be either an IP address or a host address (e.g. sip.epygi.com)
SIP Server Port indicates the host port number to
connect to the SIP server. The SIP Server Port may only contain digit
values, otherwise the error message "SIP Server Port is incorrect" will
prevent saving the extension settings. If the SIP
server port is not specified, Quadro will access the SIP server via the
default port 5060.
The checkbox Registration on SIP Server enables the SIP server
registration option.
Advanced Settings:
SIP Outbound proxy is such a SIP server where all the SIP requests and other SIP messages are transferred. Some SIP servers use outbound proxy server to escape restrictions of NAT. e.g. Free World Dialup service uses Outbound Proxy server. If an Outbound proxy is specified for an extension, all SIP calls originated from that extension are made through that outbound proxy, i.e. all requests are sent to that outbound proxy, even call by Speed Calling.
Secondary SIP Server acts as an alternative SIP registration server when the primary SIP Registration Server is inaccessible. If the connection with the primary SIP server fails, Quadro will automatically start sending SIP messages to the Secondary SIP Server, and will switch back to the primary SIP server, as soon as the connection to it will be established.
The UserID text field requires an identification parameter to reach the SIP server. It should be provided by the SIP service provider and can be requested for some SIP servers only, for others field should be left empty.
Send Keep-alive Messages to Proxy checkbox enables the certain mechanism of the SIP registration server accessibility verification. Timeout text field indicates the timeout between two attempts of SIP registration server accessibility verification. If no reply is received from the primary SIP server within this timeout, the Secondary SIP server will be contacted. When primary SIP server recovers, SIP packets will be again sent to it.
A group of Host address and Port text fields respectively require the host address (IP address or the host name) and the port number of the Outbound Proxy, Secondary SIP Server and Outbound Proxy for the Secondary SIP Server. These settings are provided by the SIP servers' providers and are used by Quadro to reach the selected SIP servers.
RTP Priority Level drop down list is used to select the priority (low, medium or high) of RTP packets sent from corresponding extension. RTP packets with higher priority will be preceded first in case of heavy traffic.