Cisco 2 port analog modem WIC. Modem speed: 56 Kbit / s, Type: K56Flex, V.90, V.92. Max. fax transfer rate: 14.4 Kbps. Supported protocols: Bell 103, ITU V.21, Bell 212A, ITU V.22, ITU V.22bis, ITU V.29, ITU V.32, ITU V.32bis, ITU V.34, .... Data compression: MNP-5, ITU V.42bis, ITU V.44. Dimensions (BxDxH): 69 x 99 x 19 mm, Weight: 68 g The interface cards provide low-cost basic connectivity for telephone services to enable 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, Cisco routers offer customers the best scalability, flexibility, and investment protection – all in cost-effective, multifunctional platforms.