The Cisco 3600 series of routers is the ideal solution for medium to large offices and Internet Service Providers.  With over 100 modular interface options (shared with the 2600/2600XM series), the 3600 series can expand to fit your needs now and in the future. 

By chosing the 3600 series and the right combination of modules, you can easily combine your data, voice and fax traffic on a single network.  This adaptability and expandability can help protect your investment for years to come.

Models:

3620 - two Network Module slots and up to 64MB of memory

3640 - four Network Module slots and up to 128MB of memory

3660 - six Network Module slots and up to 256MB of memory