User`s guide

Allworx Server Administrator’s Guide Version 7.6
Page 110 1-866-ALLWORX * 585-421-3850
www.allworx.com
Revised: 11/22/13
extensions as follows (using three-digit extensions):
For example, John Doe in New York City dials 84689 to reach Fred Jones. The SIP
INVITE is sent to the central hub with a URI of <sip:4689@centralHubAddress>. The
Central Hub validates the sender’s credentials and looks up 4689 in the databases. It
composes an INVITE with a URI of <sip:108@64.129.42.33:5060> and sends it to
allworx2. Fred Jones answers the phone and establishes the call.
Shortly after, John Doe dials 81452 to reach Larry Tate.
The SIP INVITE is sent to the central hub with a URI of <sip:1452@centralHubAddress>.
The Central Hub validates the sender’s credentials and looks up 1452 in its databases.
The recipient is on the same server as the sender (allworx1), so the hub responds with 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
establishes the call.
To configure Enterprise Dialing:
1. Log in to the Allworx server admin page and navigate to the Phone System >
Outside Lines page.
2. Click either add new SIP Proxy or, if it already exists, click the Modify link the
SIP Proxy that is the target for the Central Hub.
3. Locate the Call Route and check Proxy is an Enterprise Server to indicate the
SIP Server is an Enterprise central server.
4. Click the Update button to save settings.
Enterprise
Extension
User User Extension Site
1234 John Doe 108 allworx1
1452 Larry Tate 111 allworx1
4689 Fred Jones 108 allworx2
5999 Jane Smith 177 allworx3
Note:
The steps for configuring and maintaining the SIP centralized server are well beyond the
scope of this document. To deploy such an arrangement across sites requires detailed
knowledge about the use and administration of SIP proxy servers. Contact Allworx
Customer Support for an application note with additional helpful administration.