Understanding RTP & RTCP in Cisco Voice Networks
Understanding RTP & RTCP in Cisco Voice Networks (Complete Beginner Guide) RTP and RTCP are two essential protocols used in Cisco voice networks to deliver high-quality voice calls over IP. When you make a VoIP call using Cisco CUCM, Cisco Webex, Cisco IP Phones, or Cisco gateways, your voice is converted into digital packets and […]
What Are Dial Peers in Cisco Voice?
What Are Dial Peers in Cisco Voice? (Simple Guide for Beginners) Dial peers are the fundamental building blocks of call routing in Cisco voice networks. Think of dial peers as digital phone routes that tell Cisco routers or gateways where to send a phone call. In other words, without dial peers, calls cannot be placed […]
How to Configure Cisco Voice VLAN (Beginner)
How to Configure Cisco Voice VLAN (Beginner Guide) A Voice VLAN is a dedicated VLAN for voice traffic to ensure high voice quality, better security, and prioritized delivery of VoIP packets. Cisco phones use a voice VLAN to separate voice traffic from computer/data traffic. Why Voice VLAN is Needed Improves call quality Reduces packet loss, […]
Introduction to Cisco Webex Calling
Introduction to Cisco Webex Calling (Beginner Guide) Cisco Webex Calling is a cloud-based business phone system that enables voice calling, conferencing, messaging, and team collaboration using Cisco’s enterprise-grade Unified Communications technology. Unlike traditional on-premises PBX or Cisco CUCM deployments, Webex Calling runs entirely in the cloud, offering mobility, flexibility, and scalability for modern workplaces. Why […]
What Are Cisco Voice Gateways? (Easy Guide)
What Are Cisco Voice Gateways? (Easy Beginner Guide) Cisco Voice Gateways are networking devices that connect IP-based VoIP systems with traditional telephone networks like PSTN, analog phones, ISDN, and legacy PBX systems. In simpler terms, they act as a bridge between VoIP and traditional telephony, enabling smooth voice communication across different technologies. Why Voice Gateways […]
Common Cisco Voice Ports and Protocols
Common Cisco Voice Ports and Protocols (Complete Guide) Understanding Cisco voice ports and protocols is essential for configuring CUCM, Voice Gateways, Cisco Jabber, Webex Calling, and IP phone deployments. Voice communication uses specific ports and protocols for signaling, media, call control, directory services, and security. Why Ports & Protocols Matter Correct port configuration ensures: Successful […]
What is SCCP vs SIP in Cisco Phones?
What is SCCP vs SIP in Cisco Phones? SCCP (Skinny Client Control Protocol) and SIP (Session Initiation Protocol) are signaling protocols used in Cisco IP Phones for initiating, controlling, and managing VoIP calls. What is SCCP? SCCP is a Cisco proprietary protocol optimized for communication between Cisco IP phones and Cisco Unified Communications Manager (CUCM). […]
Difference Between VoIP and IP Telephony
Difference Between VoIP and IP Telephony VoIP and IP Telephony are related but not identical. VoIP focuses on transmitting voice using internet networks, while IP Telephony refers to the whole communication system using IP — including voice, video, voicemail, conferencing, and messaging. What is VoIP? VoIP (Voice Over Internet Protocol) converts voice into digital packets […]
What is Cisco Jabber and How It Works?
What is Cisco Jabber and How It Works? Cisco Jabber is a unified communication and collaboration application used for messaging, voice calls, video calls, presence updates, and screen sharing within corporate networks. Key Features of Cisco Jabber Instant messaging & presence Audio & video calling Screen sharing Voicemail access Corporate directory integration How Cisco Jabber […]
What is Cisco Unity Connection? Voicemail Explained
Cisco Unity Connection is Cisco’s enterprise voicemail and unified messaging platform. It allows organizations to manage voicemail, voice messages, and call routing efficiently. When users miss a call, Unity Connection stores their voicemail and lets them listen through IP phones, email inboxes, or the Cisco web portal. It integrates with Cisco Unified Communications Manager (CUCM) […]