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Installation 17
Synapse Installation Guide
Recommended Installation Sequence
1. Prepare your site for installation. See “Site Preparation” on page 32.
2. Install the PSTN and/or T1 Gateways. See “Gateway Installation” on page 41.
3. If you have only one Gateway, install the first Deskset. See “Deskset Installation” on page 45. This Deskset is assigned
extension number 200 with no Direct Inward Dialing.
4. If necessary, change the mode of operation from Call Appearance mode to Line Appearance mode. See “About Modes of
Operation” on page 19.
5. Configure the Dial Plan Settings and [T1] Direct Inward Dialing (DID). Unless you do this, the other Desksets will be assigned
sequential three-digit extension numbers starting with 201 and without DID numbers.
To use DID, see “Dial Plan Settings” on page 96 and “Direct Inward Dial (T1 Gateway)” on page 100.
Use the WebUI to change the Dial Plan Settings if you want the first extension digit to be something other than 2, possibly
to correspond to the DID numbers, or if you want the parked-call extension numbers to start with a digit other than 1.
After changing the Number of Digits and Default Phone Extension Prefix, manually change the extension number of the first
Deskset you installed, and manually set its DID number.
Changing the number of extension digits after installing some Desksets may result in undesired extension number re-
assignment, where the last three digits of previous extension numbers may not be preserved.
6. Install the other Desksets. See “Deskset Installation” on page 45.
7. Optional: Install the AT&T SB67050 Analog Terminal Adapter (ATA). See “SB67050 ATA Installation” on page 52. If you install
the ATA with phones or a fax machine connected to an FXS port before installing a Deskset, that device will default to being
the operator. Install the ATA after installing at least one Deskset so that a Deskset is the default operator.
You cannot enable Line Appearance mode if a T1 Gateway is installed in your system. Line Appearance mode is not
compatible with the T1 Gateway and T1 Gateway features such as DID.