User`s guide
System Administrator’s Guide – Release 7.2.3.x
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Revised: September 1, 2010
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a 300 Redirect with a Contact header URI of <sip:111@66.64.219.38:5060>. The Allworx
server (allworx1)
then initiates a call to extension 111. Larry Tate answers the phone and the call is established.
How to Set Up Enterprise Dialing
1. Go to the Phone System / Outside Lines page.
2. Either Add New SIP Proxy or, if it has already been added, Modify the SIP Proxy that is the target for the
Central Hub.
3. Check Proxy is an Enterprise Server under Call Route to indicate the SIP Server is an Enterprise central
server.
4. Click Update button to save settings.
Note: The steps for configuring and maintaining the SIP centralized server are well beyond the scope of this
document. If you wish to deploy such an arrangement across sites, it will require detailed knowledge
about use and administration of SIP proxy servers. Contact Allworx customer support for an
application note with additional helpful administration.
10.4.4 Limitations with SIP Outside Lines
The following calling features are not available when SIP trunks or SIP Gateways are used:
• Consultation and call transfer (using *# or *7) by recipients of Follow-Me-Anywhere call routes.
• Disconnection (hang up) of calls (using *#) when accessing outside lines through the Message Center.
However, these features ARE available when one of the parties in the call is using an Allworx phone or port
expander.
10.5 Digital Lines
Allworx refers to the integrated T1 interfaces on Allworx 24x and 48x servers as Digital Lines. The Allworx
24x and 48x servers have two T1 Digital Line interfaces that are accessed through the connectors labeled
T1-A and T1-B. There are differences in T1 port functionality between the 24x and 48x servers.
Allworx 24
x
The T1-A interface can operate as a Primary Rate ISDN line and/or as a T1 data line for connectivity to
another site or to an Internet Service Provider. That is, the T1-A interface supports both circuit switched voice
calls and TCP/IP data. The T1-A interface also supports Robbed Bit Signaling (RBS) operation. The T1-B
interface is dedicated for use as a data connection. The data connection can be used for connectivity to
another remote site on a dedicated T1 line or for connectivity to a service provider for Internet access.
Allworx 48x
One or both of the T1 interfaces can operate as Primary Rate ISDN lines, Robbed Bit Signaling (RBS) lines
and/or as T1 data lines for connectivity to another site or to an Internet Service Provider. That is, the