traditional data network. All these factors will restrict the quality of VoIP speech.
3 VoIP Speech Quality Evaluation StandardHow can we judge whether the voice quality of VoIP is good or bad? Of course, we hope that the quality of VoIP speech is as good as that of PSTN, which is also called the Toll level. It is ver
The VoIP-a reference guide to all things VoIP
This wiki covers everything related to VoIP, software, hardware, service providers, reviews, deployments, standards, Tips tricks and everything else related to voice over IP networks, IP telephony and Internet telephony.''Welcome to voip-info.org! Please e let me know at s
News
This section is for news, ie news reports, press releases, product release announcements etc.
Research: peer-to-peer Internet telephony using SIP PDF
Iconv application module for character conversion.
Version 0.9.2 of ldapget application module released. bugfix.
Over 5 million VoIP subscribers worldwide-dmeurope story
Interviews with BKW, twisted and David Mandelstam
Interview with drumkilla, the manager of the stable branc
Every organization that is considering deploying a VoIP Phone System has heard the same terrible warning: "routing voice calls over the data network will expose the call content to eavesdroppers ".Although in fact, any phone call is at risk of being eavesdropped to some extent, is the VoIP call system itself at a high risk? In this article, we will explore the ins and outs of
Too many VoIP service providers want to sell you their "full solution", from the phone number on your desk, from different sites to the WAN and public exchange Telephone Network (PSTN).
However, as I have seen, Unless users and suppliers have full experience and thoroughly checked every detail, the so-called "full set of VoIP systems" will certainly make some mistakes.
Enterprises that have trouble with
In the current network communication, the Email service is no longer the preferred communication method. More instant messaging and voice services are emerging on the network. Now let's talk about the technical principles of VoIP for IP phones.Basic transmission process
The traditional VoIP telephone network transmits voice in a circuit exchange mode. The required transmission bandwidth is 64 kbit/s. The so
How can I test the VoIP function with an existing PBX or key-press system?
There are multiple ways to use the existing PBX system or key-press system to test the VoIP function. How to test the function depends on your purpose.
If there are two sites connected with PBX connection lines, but you want to use VoIP so that you can send calls between internal network
on mobile voice services, however, the performance evaluation results of traditional MANET for VOIP services are always unsatisfactory. Here, people are very concerned about whether the wireless mesh network can meet the quality requirements of users for real-time voice services.
Iometrix, a professional testing company, conducted the first performance evaluation and testing of Wireless Mesh Networks Based on the draft study by the IEEE 802.11 Workin
process.
Traffic Simulation
Place software agents or hardware devices on two or more points in the network and run the combined VoIP communication between these points. The tested data can be intensive data in a short time.
(For example, used for pre-application evaluation), you can also monitor performance without interference for a long time. The generated data can simulate a large number of telephone loads, encoding types, and
are tested, it also has a great relationship with the language, age, and gender of individual testers. The MOS value range is from 1 worst) to 5 best). The MOS value of the long-distance call in the PSTN network is between 4.0 and 4.5. In the case of a GSM call, it is approximately 3.6.Step 3: new IP performance specifications
In the line exchange world, server-centric specifications built on the basis of
[Translated from mos] explanation of histogram information and mos Article histogram Information
Interpreting histogram InformationSource:Interpreting Histogram Info (Doc ID 72539.1)
Applicable:Oracle Database-Enterprise Edition-Version 7.3.0.0 and laterOracle Database-Standard Edition-Version 7.3.0.0 and laterOracle Database-Personal Edition-Version 7.3.0.0 and laterInformation in this document applies t
[Translated from mos] Method of rebuilding control file, mos Reconstruction
Reconstruction of Control Files
Reference Original:How to Recreate a Controlfile (Doc ID 735106.1)
Applicable:Oracle Database-Enterprise Edition-Version 9.0.1.0 and laterInformation in this document applies to any platform.
Solution:
Warning:You should recreate your control file only in the following scenarios
1. All the current con
1995 Israel VocalTec Company launched the Internet phone, not only is the beginning of VoIP network telephony, also opened the telecommunications IP prologue. People will not only be able to enjoy the cheaper and even completely free call and multimedia value-added services, the service content and the face of the telecommunications industry has also changed drastically.
The beginning of the network phone is in the form of software, and only limited
VoIP is a blockbuster in the communication market. Why? Because the price of VoIP is very low, it is very convenient to use, because this network-based technology is very expensive and has many advantages. Do you want to know more about VoIP phones? Go to the following link.
Since its first launch in 1995, VoIP has bec
[Translated from mos] a thorough understanding of rman compression, mos Article rman Compression
A thorough understanding of rman CompressionSource:A Complete Understanding of RMAN Compression (Document ID 563427.1)
Applicable:Oracle Database-Enterprise Edition-Version 8.1.7.4 to 11.2.0.3 [Release 8.1.7 to 11.2]Information in this document applies to any platform.* ** Checked for relevance on 14-Oct-2014 **
[Translated from mos] Main Note, mos mainnote
Main Note-Supplemental Logging and TRANDATA of ogg
Original article:Main Note-Supplemental Logging and TRANDATA for OGG (Doc ID 1537838.1)
ApplicableOracle GoldenGate-Version 9.5 _ EA and laterInformation in this document applies to any platform.
PurposeBefore extracting data from the oracle redo log, you need to use the dbloin command from the ggsci command pro
Python implements the mos code translation implementation method with sound, python MOS
The example in this article describes how to implement the voice-carrying Moss translation program in python and share it with you for your reference. The specific analysis is as follows:
Here, you need to use PyGame to make a sound.
import pygameimport timeimport sysCODE = {'A': '.-', 'B': '-...', 'C': '-.-.', 'D
VoIP has many security risks and faces many security threats, but this does not mean that the security of VoIP is irretrievable. In fact, with the frequent occurrence of security events, many VoIP manufacturers are also accumulating experience in practice and using some measures to guarantee the security of VoIP to a g
It runs as follows: Gullible users receive an e-mail (or a phone call), are told that his credit card information is being stolen, and then let him quickly dial a phone number. This phone will have computer-made voice prompts, let him enter credit card number and other authentication information and so on.
Security Policy for VoIP
Have you ever heard of the latest VoIP fishing trick-vishing's notoriety?
Job cannot run automatically -- this is another MOS article
Reference Original:
Jobs not executing automatically (Doc ID 313102.1)
Applicable:
Oracle Database-Enterprise Edition-version 9.2.0.3 to 10.2.0.4 [release 9.2 to 10.2]
Information in this document applies to any platform.
Symptoms:
The job has not run automatically for a long time.
If you execute (Exec dbms_job.run (
Cause:
Follow these steps to check the cause of the failure of automati
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