DESC: Cisco's 1-Port Modem WAN Interface Card is available for the award-winning Cisco 1800, 2600XM, 2691, 2800, 3700, and 3800 Series modular router platforms. The interface card provides cost-effective basic telephone service connectivity to allow remote router management, asynchronous dial-on-demand routing (DDR) and dial backup, dial- and fax-out modem access, and low-density remote-access-server (RAS) services. Combined with the differentiated services delivered through Cisco IOS Software, the Cisco 1800, 2600XM, 2691, 2800, 3700, and 3800 Series routers offer customers best-of-breed scalability, flexibility, and investment protection-all in cost-effective, multifunctional platforms.