This page contains information about IP Telephony/Voice over IP (VoIP) technology.

Session Initiation Protocol (SIP) forms the backbone of modern real-time communication networks. Over the years, SIP has been enhanced a great deal to include several use cases that make it a very …

We covered the properties, features, advantages and disadvantages of each one of them and also learned about how these protocols basic configuration commands on Cisco VOIP environment.

Aug 6, 2025 · This document describes the fundamentals of various VoIP protocols to assist engineers in troubleshooting them effectively on Secure Firewalls.

Jul 6, 2024 · Voice over IP (VoIP) technology revolutionizes communication by providing cost-effective and efficient means to make calls over the internet. In this article, you will delve into the intricacies of …

CallManager is usually the heart of a Cisco VoIP implementation, as it is the “brain” of the call control protocols to all IP telephony devices. CCM v4.x and earlier are installed on a Microsoft Windows …

The Voice over Internet Protocol (VoIP) is based on various signaling protocols to handle calls. There are four significant types, which include SIP, H.323, MGCP, and SCCP.

To perform these functions, Cisco CallManager uses industry standard IP protocols including H.323, MGCP, SCCP, and SIP. Use of Cisco CallManager and these protocols gives service providers the …

One of the most popular communications protocols for hosted VoIP solutions is the Session Initiation Protocol (SIP). Although non-hosted, on-premise business phone systems can also use SIP as the …

In this sample chapter from CCNP Collaboration Call Control and Mobility CLACCM 300-815 Official Cert Guide, you will review the function components of Session Initial Protocol (SIP), exam Session …