2-port VWIC3-2MFT-G703 Voice card.
This is a Cisco third generation Voice / WAN T1/E1 interface card supports both voice and data application on Cisco ISR 2 1900/2900
The Cisco IP Communications voice/fax network modules for the Cisco 2800, 2900, 3800, and 3900 Series unified communications routers enable packet voice technologies
The Cisco 2821 Integrated Services Router is part of the Cisco 2800 Integrated Services Router Series which complements the Integrated Services Router Portfolio. The
features Voice Analog and digital voice call support Optional voice mail support Optional support for Cisco CallManager Express (Cisco CME) for local call processing ...