Cisco Integrated Service Router Unified Communications Bundles combine award-winning hardware and software components from Cisco to provide a unified communications solution expressly for small and medium-sized businesses (SMBs) and enterprise branch offices. The solution delivers integrated data, IP telephony, voicemail, and automated-attendant functions, allowing customers to deploy one device to address all their business needs, thereby simplifying management, maintenance, and operations and delivering a lower total cost of ownership (TCO).This product includes 32-channel high-density packet voice/fax DSP module and AIM-CUE advanced integration module.