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The Digium TE134F PCI card supports T1, E1 and PRI environments. Use the Digium TE134F to leverage an existing analog system with VoIP, featuring a single RJ48 port. Onboard echo cancellation enhances voice and audio performance, and also saves this task from other network hardware. The Digium TE134F single-port PCI card is compatible with Asterisk. Install this card in offices, call centers or any workplace seeking an affordable means of migrating to VoIP telephony.