Q: What is Cisco IP Telephony?
A: Cisco IP Telephony is a technology that enables voice and multimedia communication over IP networks. It uses the Internet Protocol (IP) to transmit voice and video data over the same network that is used for data communication.
Q: What are some benefits of Cisco IP Telephony?
A: Cisco IP Telephony offers many benefits, including:
Cost savings: By using a single network for both voice and data communication, organizations can save money on infrastructure and maintenance costs.
Increased mobility: Users can access their voice and messaging services from anywhere on the network, including remote locations.
Advanced features: Cisco IP Telephony offers a range of advanced features, such as video conferencing, call routing, and call forwarding, which enhance communication and collaboration.
Scalability: Cisco IP Telephony can be easily scaled to accommodate growing businesses and changing communication needs.
Q: What is the difference between a router and a switch?
A: A router is a networking device that connects multiple networks and directs traffic between them. It operates at the network layer of the OSI model and uses IP addresses to route packets between networks. A switch, on the other hand, is a networking device that connects multiple devices on a local area network (LAN). It operates at the data link layer of the OSI model and uses MAC addresses to direct traffic between devices.
Q: What is Quality of Service (QoS) in IP Telephony?
A: Quality of Service (QoS) is a set of technologies and protocols that prioritize and manage network traffic to ensure that voice and video traffic receive the necessary bandwidth and are not impacted by other network traffic. In IP telephony, QoS is critical for ensuring that voice and video calls are clear and uninterrupted.
Q: What is a Virtual Private Network (VPN)?
A: A Virtual Private Network (VPN) is a secure and private connection between two networks over the public Internet. VPNs are often used to connect remote users or branch offices to a company's main network. Cisco offers a range of VPN solutions, including Cisco AnyConnect, which provides secure access to the network from anywhere on any device.
