on premise pbx

Recently, various attacks against VoIP voice gateway devices have frequently occurred, causing many troubles and economic losses to customers. In order to further prevent the VOIP Voice Gateway from being compromised by a network attack or attack, the network technology provides several preventive measures for the security of the voice gateway device, ask the customer to take measures to prevent the security of the voice gateway device. 1.1 Login Password Management Strengthen the maintenance an

Import android. graphics. Point;/**** @ Author http://blog.csdn.net/arui319**/Public class bezr {Private static final float AP = 0.5f;Private Point [] bPoints;/*** Creates a new bezr curve.** @ Param points*/Public bezr (Point [] points ){Int n = points. length;If (n // Cannot create bezr with less than 3 pointsReturn;}BPoints = new Point [2 * (n-2)];Double paX, paY;Double pbX = points [0]. x;Double pbY = points [0]. y;Double pcX = points [1]. x;Doubl

Document directory 1.2.1 UAC. BAT: 1.2.2 data.csv: 1.2.3 UAC. xml: 1 installation and Overview: SIPP is a tool software used to test the performance of the SIP protocol. This is a GPL open source software. It contains some basic sipstone user proxy workflows (UAC and UAS) and can be used to create and release multiple calls using invite and B ye. It can also read the XML scenario file, that is, the configuration file that describes any performance tests. It dynamically displays test runni

provides both voice and data interfaces. If you have an integrated access device, make sure it can be upgraded to a full-featured router with new software before changing it. The "VoIP" that appears here is only the data-based voice data between the external connections of the PBX. For enterprises with more than one site, a good start is to replace the current direct connection telephone line with VoIP between different sites. In this step, you do no

Asterisk is an open source PBX system and it is difficult to find a detailed description of the asterisk kernel system in public information. Therefore, it is necessary to write a core framework of the description of the document as an internal training document, learn from each other to improve. This paper mainly describes the asterisk kernel from three levels, that is, asterisk kernel module, kernel boot process and basic call flow. First, asterisk

The asterisk core handles these items internally: PBX switching-The essence of communication, of course, is a private branch exchange switching system, connecting calltogether between varous users and automatic tasks. The switching core transparently connects callers arriving on various hardware and software interfaces. Application launcher-Launches applications which perform services for uses, such as voicemail, file playback, and directory listing.

For H3C unified communication, we have briefly introduced it in the previous article. Now we will introduce its solution features in depth. Of course, we can also see that these are also the characteristics of the Unified Communication System. In the H3C Unified Communication solution, how do they use this technology to make it more stable and more practical for enterprises? H3C Unified Communication has a hierarchical architecture and open and standard IP technology and interface protocols. It

The Programmable switch, also known as PBX (private branch exchange), is the main channel and bridge between the call center and the outside world.Programmable switchProvides external interface with the local telephone Relay (generally E1 digital relay), and internal interface with the agent representing the phone and automatic voice response device. Programmable switchIt has been widely used in traditional enterprises. In such applications, the num

Looking back at the development process of the Unified Communication Platform, what do we feel? I just think that the progress of science and technology is confusing. Who once thought that the old beacon was a video exchange? Who once thought that the original fast whip, just for a letter, now a bunch of waves can pass your mind. Although the Unified Communication Platform has entered our field of view for a certain period of time, what is unified communication. Some people say that Unified comm

telephone services and dial-up Internet services, it directly encapsulates user data and user line signaling in the IP package. Integrated Access Device (IAD) IAD provides both analog user lines and Ethernet interfaces for accessing common telephones and computer devices. It is applicable to users who use telephone services and computers to use data services respectively. The other type of IAD Only provides Ethernet interfaces for accessing computer devices. It is suitable for users who use bot

found a whole host of modems, hackers have been dialing into the network to continue to look for unprotected or easily guessed passwords on the system. The War dialers preferred Attack object is the "No password" PC remote management software. These software are typically installed by end users to remotely access the company's internal systems. These PC remote control programs are extremely vulnerable when using an insecure modem. Thc-scan is the abbreviation for the Hacker ' Choice (THC) scann

For a growing company, effective communication is as important as the strong business planning of capital operations. But at the moment, small and medium-sized businesses and affiliates are still at a high point when it comes to corporate phone systems. The advent of the network telephony switch has changed this situation. The traditional telephone switch uses the telephone line to transmit the voice signal, but the network telephone exchange uses the unified network communication equipment and

communication, and give some suggestions to enterprises in terms of purchasing group telephone switches. There are various group telephone systems on the market, analog, digital, and network IP-based products. Which product is truly suitable for the enterprise's own needs? The following items must be considered: Cost factors: financial conditions, number of internal phone calls within the enterprise, overall cost, whether there are too many long-distance flights in the field, whether there are

different session timer settings. Connect two terminals with different media capabilities and different SDP messages by reporting in two different control sessions. To support different network types (V4, V6), and different transmission types, TCP/UDP/sctp/TLS C. Multi-Point call management In this scenario, multiple CPE (CPE is the abbreviation of "mermerpremiseequipment", literally referred to as "User front-end device") are connected to b2bua, and b2bua provides services for all CPE. D. i

On October 16, January 27, Avaya held the Asia-Pacific Channel Partners Conference in Beijing. AVAYA was the Global CEO and the New Asia-Pacific president (former president of Beijing Power Asia-Pacific) global and Asia Pacific Technical and channel executives attended the event. AVAYA announced a new product roadmap for integrating the SNE Enterprise Network (NES) in January 19 a week ago: four main product lines: Unified Communication, contact center, small-and medium-sized enterprise communic

In the previous article, we introduced SOA and unified communication, including its overall concept and traffic business. Now we will continue to explain SOA and Unified Communication. First, let's review the four methods of SOA in speech. Then, we will introduce the situation of some products and vendors. Four Methods of hybrid speech and SOA Despite the bright future, the market is still in its initial stage, with only four major vendors. Avaya and Siemens work on SOA from the traditional tele

VoIP is a popular technology in the world. Sometimes, when talking about the benefits brought by communication technology, VoIP has won a lot of praise. More and more enterprises are migrating their telephone systems from traditional PBX to ip pbx or IP Centrex of VoIP. The traditional production of PBX is gradually decreasing, and network telephone is becoming t

that the SIP protocol layer is enhanced in the communication layer. with this open technology, avaya's Aura communication platform enables the association and interoperability between different manufacturers and different devices and services. The platform is positioned between communication infrastructure (such as PBX) and services (such as voice, video, message, video conferencing, and mobility. Thanks to the advantages of Aura, both Avaya and Nort

From: http://brekeke-sip.com/bbs/viewtopic.php? P = 11824 SID = 1337c4d609517c9d1f0fcc5167d7d5a1 1) Please go to Ondo SIP Server admintool> [config] menu> [system].Set [Java VM arguments] =-xrs 2) If you are also using Ondo PBX, please go to Ondo PBX admintool> [Options] menu. Please find two [Java VM arguments] fields in the page.One in PBX system settings an

time, the realization of Enterprise National IP Voice, will establish a nationwide centralized customer service center to lay the foundation. 　　 Since the corporate headquarters typically has a traditional PBX telephone switch, Cisco 3725 is configured as a voice gateway at Headquarters and connected to a PBX through the E1 interface. If the enterprise has a number of branches in the country, each branch