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The Avaya MM710 Media Module supports a T1 and E1. ISDN PRI is optionally supported (ISDN PRI is available on T1 or E1 and is an option for which the customer may pay). It provides echo cancellation in either trunk direction. It supports trunk signaling on US and International CO trunks and tie trunks. It has a built-in Channel Service Unit (CSU), and supports u-law or A-law gain/loss control and echo cancellation.
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