**************************************** **************************************** **************************************** ***Author: EasyWave time: 2013.03.31
Category: Linux application LinPhone Declaration: reprinted. Please keep the link
NOTE: If any error occurs, please correct it. These are my Learning Log articles ......
**************************************** **************************************** **************************************** ***
In 《Linux-based open-source
technologies, such as g.711 and the bit rate is 64 Kbps.Management and priority: for example, it is a key task to ensure that voice packets in the queue are not congested when a large file transmission occupies network bandwidth.What applications does VoIP have?A. IP-based PBX: combines an enterprise's telephone system with a computer network;B. IP voice mail;C. Hosted PBX solutions;D. IP Call Centers: customer service center;IP protocol ProblemsInde
Introduction
My company wowould like to set up a call center. the call center needs a VOIP router. we choosed Cisco 2811, and we applied an E1 cable to host 30 phones in. we need to do necessary configuration in the Cisco 2811 router.
Config the Cisco 2811 router
We have Ed the router. we started to config the router. first we checked the delivery list file in the package, and found a console cable. the console cable is used to config the router. one
Http://www.lxvoip.com/thread-36596-1-1.html
3cx phone system, which is based on WindowsThe VOIP server software can replace the traditional dedicated hardware program-controlled switch. It has a Chinese operation interface and is easy to set up. It is suitable for enterprises to build a telephone network and allow free calls between extensions,Each extension can also be called to a traditional telephone network, or used as a telephone customer service
Received a notice that the number of MySQL connection is not enough, let's see what the reason.
Log in with Root to see that the current number of connections is far from the max_connections connection limit.
Ask my colleagues to send me the wrong
"On the side of a PBX or bureau switch, a small amount of electrical energy is not fully converted and returned along the original path to form an echo." If the caller is not far from the PBX or switch, the Echo returns quickly and the human ear
H323 open source code
: Www.openh323.org
There are protocol stacks, soft terminals (openphone, ohphone), and opengk, openmcu .....
Http://www.voxgratia.org/documents.html
Open g.729
I. Features of ECHO in Internet voice communicationCompared with traditional telephones, real-time voice transmission over the Internet has a fatal weakness. That is, the quality of voice is poor, and there are many factors that affect the quality
SIP is an application control signaling protocol proposed by IETF. As the name implies, it is used to initiate a session. It can be used to create, modify, and end multimedia session processes attended by multiple participants. Participants can
I recently found out doing a sip capture on a FreeBSD system is a little different than centos or other Linux distributions. here is a easy to use command that will grab the SIP packets from TCP dump. this will give you an easy to read text file for
Principle: InProgramAfter the program is switched to the background, an action is executed every 10 minutes to wake up the program, thus ensuring that the program runs in the background.
1. Add the uibackgroundmodes key value to info. plist.
Let
"IPv6 configured Commands"
IPv6 Install/Installation IPv6, limited to XP system use
IPv6 unicast-routing/Enable IPv6 forwarding, configuring on the router
Show IPv6 router/view IPv6 routing Table
IPv6 router RIP test/enable RIP protocol, named
To the same version to import backup VOS2009 data interrupts the current call login ssh. Terminating vos service/etc/init.d/mbx2009d Stop/etc/init.d/vos2009dall stop/etc/init.d/mysql STOPCD/VAR/LIB/MYSQLCP-DPRF Vosdb/root/vosdbdate/etc/init.d/mysql
1. VoIP1) First, modify the plist configuration of the application and add the following settings:Application does not run in Background: NoRequired background modes: VoIPNote: after these configurations are added, the application will automatically
Document directory
Registering multiple user devices
The via header, forking, loop prevention
An example using proxies
User location
Let's step out of the SIP layers and see what we have so far: using the layers, we can now create and receive
Things can become more complex in scenarios other than those outlined above. for example, you might use prack (defined in RFC 3262), which is a provisional response acknowledgement. there are some cases in which we wowould like to guarantee the
Document directory
For users of hash tables, this is an instant. The hash table operation is very fast. In computer programs, if you need to search for thousands of records within one second, a hash table (such as the spelling checker) is usually
Some time ago, I was dragged to. Net for two months and worked overtime every day. Alas, This Is What outsourcing companies do.
Now you don't have to work overtime. You can study the audio and video communication based on SIP.
After studying blogs
Google is testing a more practical function for Gmail Chat: users can directly call or receive Google Voice calls in the pop-up dialog box of Gmail. A new phone window with a digital keyboard will appear in the Gmail Chat Window, where you can also
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