Cisco Datasheets for VoIP and IP Telephony

VoIP and IP telephony allows PC users to make phone calls over the Internet or other packet networks via gateways and standard telephones.
VoIP and IP Telephony: Learn more

Product Name Notes
Integrated Services Routers -- 4000 Series Get your branch site ready for digital Delight customers and employees with new digital experiences. Simplify day-to-day IT management. Prepare your branch site and protect it for the future with...