sip isup

SIP Message Type and Message format SIP is a text-based protocol that uses the UTF-8 character set. There are two main types of SIP messages: One is the request sent from the client to the server ); One is the response message sent from the server to the client ). A basic SIP message includes the starting line, one or

When talking about the SIP Protocol, many people first think of the VoIP service. So what else is there? Today we will introduce another embodiment of the SIP business-Erlang project called yxa official website http://www.stacken.kth.se/project/yxa/), can be said to be the Erlang on the SIP protocol stack and server implementation. In addition to the basic

SIP protocol Learning 1The SIP protocol is an application layer control protocol proposed by IETF for multimedia communication over an IP network. A hierarchical method is used to create a service. A control protocol on the application layer is used to create, modify, and terminate multimedia session processes with multiple participants. Members participating in a session can communicate through multicast,

The development example of this blog post must be based on the previous SIP servlet development environment configuration, and if the SIP servlet development environment is not properly configured, refer to the SIP servlet development environment Configuration chapter.First, we create a dynamic WEB Project project called "Siptest", based on the method mentioned i

to build and maintain through servlet and JSP models-View-control architecture, but they are basically text-based, it is rarely integrated with a variety of collaborations used by some Windows-based applications, such as various VB controls that can be integrated with audio and video-based media applications. Figure 1 user experience More and more people expect Web applications to integrate traditional HTML interfaces with functions such as instant messaging, voice over

SIP (Session Initiation Protocol, conversational initial protocol) was developed to help provide advanced telephony services across the Internet. Internet telephony (IP telephony) is evolving into a formal business telephony model, and sip is an important part of the NGN (Next Generation Network) family of protocols needed to ensure this evolution. Support for the H + protocolSIP Learning Note 2007-12-28 21

In asterisk, there are three types of peer: Peer, user, and friend.Let's take a look at the three types of VoIP-info. Peer: a sip entity to which asterisk sends CALS (a sip provider for example ). if you want a user (Extension) to have multiple phones, define an extension that CILS two sip peers. the peer authenticates at registration.User: a

In The XML configuration file of jain sip proxy, The proxy needs to initialize it through The XML file. Therefore, we need to know a lot about this part of content. Let's take a look at the parameters of the SIP protocol stack you configured. So we will give a detailed explanation of this Part, and hope it will help you. SIP_STACK tag: this parameter is required. It defines the core parameters of the

In the previous article, we used the description of the SIP Routing Mechanism to understand the definition and concept of the SIP routing mechanism. Next, let's explain these abstract concepts to help you understand them. Next, we will use two SIP routing instances to help you understand these concepts. SIP route Examp

ubuntu9.10 Install OpenSER and use RTP Proxy to realize turn, solve the problem that symmetric NAT brings to SIP voice communication Reprinted from Link http://hi.baidu.com/zj8la8la/blog/item/d700d8b2c11a41abd9335af9.html Leave a note, convenient other people, online resources are not complete, I do a complete bar, at least I test through:My goal is very simple, just realize the SIP network MySQL database

Next Generation Network (NGN) and SIP protocol With the rapid development of mobile communication technology, we are brought into the colorful 3G multimedia Information age. In particular, the rapid development of the Internet, more and more users can use faster, cheaper Internet connection, which makes such as chat applications, video voice, online games, such as the need to continue online applications to achieve the possibility. The traditional te

**************************************** **************************************** **************************************** ***Easywave time: 2014.09.14 Category: Linux application-open source server opensips introduction statement: reprinted, please keep the link NOTE: If any error occurs, please correct it. These are my Learning Log articles ...... **************************************** **************************************** **************************************** *** I. Introduction to op

Session Initiation Protocol (SIP) is the biggest winner in the VoiceCon IP Phone exhibition held this week. Some vendors have announced the launch of SIP-based upgrade products or added support for this security protocol to their existing products.SIP is a single signaling and Event Notification protocol that combines voice, video, and message communication. This Protocol also provides a standard-based appr

1. What is sip? Step-by-Step sip Ii. How to Use sip in Android? Sipdroid, Demo: Android-SDK-Windows \ samples \ Android-9 \ sipdemo 3. Does the system support sip? Android provides the SIP function since 2.3. The SIP-related APIs

Chapter 8 query capability The SIP Options method allows one UA to query the capabilities of another UA or proxy server. This allows the client to detect information about the methods, content types, extensions, and encoding they support, rather than the other end of "calling. For example, before the client inserts a require header field into invite and lists the capabilities that are not supported by the target UAS, it can first use the Options metho

People often ask if SIP uses HTTP as the underlying protocol. The answer is in the negative. SIP is a protocol that works with HTTP on the same layer (that is, the application layer), which uses TCP, UDP, or SCTP as the underlying protocol. However, there are many similarities between SIP and HTTP. For example, like HTTP, SIP