
Each module supports up to sixteen Loop Start or Ground Start* trunks. The first two trunks on the module are automatically switched to power fail sockets on the rear of the unit in the event of power being interrupted.
*Note: Ground start trunks are not available in all territories.

This module is compatible with the current IP 412 Avaya IP Office system and is backwards compatible with the discontinued IP 403, and IP 406 Avaya IP Office platforms.
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