User guide

Chapter 4 – Configuring Your MultiVOIP
MultiVOIP® Voice/Fax over IP Gateways 59
SIP Call Signaling Parameter Definitions
Field Name
Values
Description
SIP Proxy Parameters
Signaling Port
port
Port number on which the MultiVOIP UserAgent software module is waiting for any
incoming SIP requests. Default = 5060
Use SIP Proxy
Y/N
Allows the MultiVOIP to work in conjunction with a proxy server.
Allow Incoming Calls
Through SIP Proxy Only
Y/N
When selected, incoming calls are accepted only if those calls come through the proxy.
Primary Proxy
--
This is the preferred SIP proxy server for controlling the traffic of the current VOIP.
Alternate Proxy 1 and 2
--
A first and a second alternate SIP proxy server can be specified for use by the VOIP for
situations where the Primary proxy server is otherwise unavailable.
Proxy Domain Name / IP
Address
n.n.n.n
Network address of the proxy server that the VOIP is using.
Append SIP Proxy Domain
Name in User ID
Y/N
When checked, the domain name of the SIP Proxy serving the MultiVOIP gateway is
included as part of the User ID for that gateway. If unchecked, the SIP Proxy’s IP address is
included as part of the User ID instead of the SIP Proxy’s domain name.
Port Number
port
Logical port number for proxy communications. Default = 5060
Default Subscriber
This is not implemented in the –SS series VOIPs.
This is used as the default end point register with a Proxy.
Default Username
name
If the Username is not populated in the Phone Book, this is the Username that is used.
This works the same for the password as well.
Password
password
Password for proxy server function. See “Default Username” description above.
Re-Registration Time
10–65535
seconds
This is the timeout interval for registration of the MultiVOIP with a SIP proxy server. The
time interval begins the moment the MultiVOIP gateway registers with the SIP proxy
server and ends at the time specified by the user in the Re-Registration Time field (this
field). When/if registration lapses, call traffic routed to/from the MultiVOIP through the
SIP proxy server ceases. However, calls in progress continue to function until they end.
Proxy Polling Interval
60 - 300
The interval between the VOIP gateway’s successive attempts to connect to and be
governed by a higher level SIP proxy server. The Primary Proxy is the highest level
gatekeeper. Alternate Proxy 1 is second; Alternate Proxy 2 is the lowest order SIP proxy
server.
TTL Value
SIP proxy
“Time to
Live”
value.
(in
seconds)
As soon as a MultiVOIP gateway registers with a SIP proxy server (allowing the proxy
server to control its call traffic) a countdown timer begins. The TTL Value is the interval of
the countdown timer. Before the TTL countdown expires, the MultiVOIP gateway needs to
register with the gatekeeper in order to maintain the connection. If the MultiVOIP does
not register before the TTL interval expires, the MultiVOIP gateway’s registration with the
proxy server expire and the proxy server no longer permits call traffic to or from that
gateway. Calls in progress continue to function even if the gateway becomes de-
registered.