System information

System Administration Guide
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Revised: March 28, 2007
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new gateway. Once either a SIP Proxy or a SIP Gateway is defined on the Outside Lines page, you can use
their respective Modify link to make adjustments to their configurations. One particular thing to note about the
Modify page is that it actually presents the opportunity to make adjustments to parameter choices that are not
presented on the creation page. These additional parameters in the Advanced Settings section should only
have to be adjusted if the associated device or service is not fully compliant in some way with the current
edition of the SIP standards.
7.2.1 Details about SIP Proxies
Here is some additional information on particular parameters for SIP proxies.
Description
– This field is the friendly name of the SIP Proxy and can be any text useful to the System
Administrator. For example, you may want to enter the name of the ITSP this proxy relates to.
User ID
– The ITSP or the Administrator of the SIP proxy service you are connecting to typically assigns this
value. This ID is usually a phone number.
SIP Server
– This is the DNS name or IP address of the proxy service you are connecting to. This is
obtained from the ITSP. A port number can be selected here which is almost always 5060, but it should be
verified with the service provider (ITSP).
Outbound Proxy
– This is the DNS name or IP address of the outbound redirect server if different than the
above SIP server. In many cases this is not required, but some service providers differentiate between
inbound and outbound calls.
SIP Registration Required – If your SIP proxy server requires a SIP registration, check the box indicating this
and fill in the Login ID and Password assigned by the ITSP. If the ITSP uses a registrar server that is
different than the SIP proxy server, enter the DNS name or IP address of this server in the Registrar name
field.
Caller ID Name
– The assigned Caller ID passed outbound when calls are placed towards the SIP proxy.
Some ITSP’s may ignore this or refuse calls if set.
Caller ID Number
– The assigned Caller ID Number passed outbound when calls are placed towards the SIP
proxy. Some ITSP’s may ignore this or refuse calls if set.
Maximum Active Calls
– The Allworx server will use this number to limit the total number of the incoming and
outgoing active calls with this SIP Proxy. This is useful for controlling the network bandwidth used, since it is
assumed by Allworx that the SIP proxy is not a LAN local service.
Number of Line Appearances – This field defines the number of Line Appearances you would like defined for
this Proxy so that Allworx will create a virtual set of phone lines that mimic real physical analog phone lines
on this service. This is a feature unique to Allworx and allows ITSP services to be used in a conventional key
system manner. Typically this number matches the maximum number of active calls limit set above, but it can
be less.
Note: Set a value of zero if Line Appearance functionality is not required.
Send Digits as Dialed
– Specifies that outbound numbers should always be sent exactly as dialed on the
handset placing the call. In most cases, you want the number converted into NANPA dialing form, so this box
is not typically checked. However, in some cases, the service provider or proxy may be doing the conversion
automatically so you may want to defeat the Allworx server’s conversion mechanism.
Digits Sent
– This is the number of dialed DTMF digits to be sent to the ITSP when making a call. If the
number specified is less than the number dialed, the trailing digits are the ones sent. The default value is
typical.