The Cisco 1861 Integrated Services Router, which is part of the Cisco 1800 Series Integrated Services Router portfolio, is a unified communications solution for SMBs and enterprise small branch offices that provides voice, data, voicemail, Automated-Attendant, video, and security capabilities while integrating with existing desktop applications such as calendar, e-mail, and customer relationship management (CRM) programs. This easy-to-manage platform takes full advantage of business-class, proven unified communications technologies and supports flexible deployment models based on your needs - a wide array of IP phones, public switched telephone network (PSTN) interfaces, and Internet connectivity.