Extension Assignments; Placement Considerations - AT&T SB67010 PSTN Installation Manual

Synapse Installation Guide

Extension Assignments

The system assigns extension 200 to the first Deskset that joins the network. At this point
you can use the Dial Plan Settings page in the WebUI to set a different first digit for
extension numbers for Desksets that will be connected to the network. The WebUI calls
this the Default Phone Extension Prefix. If you want to use four-digit extension numbers,
you should also change the number of digits from three to four at this point.
The system automatically assigns each additional Deskset an extension number in
ascending order as it is connected to the LAN.
Once the Desksets are connected to the same network, they find each other through
Peer-to-Peer (P2P) discovery protocols and automatically self-configure. Additional
telephony and network configuration is administered through the WebUI.
Even if you unplug a unit, its extension number is reserved. If you want to remove an
extension from the network, you must delete the extension number using the WebUI
Device Management menu. Deletion ensures that the Deskset does not tie up an
extension. You can use the WebUI to change or delete extension numbers.
If your site is one of several remote sites using SB67070 SIP Gateways, depending on
your dial plan and other configuration, you may want to ensure that extension numbers
do not overlap with extension numbers used at the remote sites. You can prevent overlap
either by choosing a unique first digit (Default Phone Extension Prefix) or by restricting
your extension numbers to a range. For example, your local site uses 200 to 249, while
a remote site uses 250 to 299.
For more information, see the Synapse Administrator's Guide at
www.telephones.att.com/synapseguides

Placement Considerations

Avoid placing any Synapse component too close to the following:
Communication devices, such as television sets, DVD players, or other cordless

telephones
Excessive heat sources

Noise sources, such as a window with traffic outside, motors, microwave ovens,

refrigerators, or fluorescent lighting
Excessive dust sources, such as a workshop or garage

Excessive moisture

Extremely low temperature

Mechanical vibration or shock, such as on top of the washing machine or

workbench.
ATA Placement Considerations
You can install an optional ATA near the Gateway, or near one of the third-party devices
that are being used with it. For example, it might be easier to place the ATA near your
fax machine instead of running a telephone line connection from the fax to an ATA
located in a telephone equipment cabinet.
Installation
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