Cisco PA-VXB-2TE1+

The Cisco enhanced digital voice port adapters (PA-VXC-2TE1+, PA-VXB-2TE1+, PA-VXA-1TE1-24+, and PA-VXA-1TE1-30+) for the Cisco 7000 Series routers provide high-capacity voice, termination to private branch exchanges (PBXs), and the Public Switched Telephone Network (PSTN) for central-site and large-branch packet voice applications. The enhanced digital voice port adapter family consists of three members: the Two-Port T1, E1 High-Capacity Enhanced Digital Voice Port Adapter (PA-VXC-2TE1+), the Two-Port T1, E1 Moderate-Capacity Enhanced Digital Voice Port Adapter (PA-VXB-2TE1+), and the One-Port T1, E1 Enhanced Digital Voice Port Adapter (PA-VXA-1TE1-24+, PA-VXA-1TE1-30+). Supported on the Cisco 7200, 7400, and 7500 Series routers, all three port adapters offer the same industry-leading feature set and performance. The cards differ only in their overall voice-channel capacity.