dtmf relay

; i40000; i++); Stopbuzz ();//Stop buzzer for(i=0; i40000; i++); Openbuzz ( +);//Start buzzer at 1KHZ frequency for(i=0; i40000; i++); Stopbuzz (); for(i=0; i40000; i++); }}voidOpenbuzz (unsigned intfrequ) {unsigned intReload//Calculate the required timer reload valueReload =65536- (11059200/ A)/(frequ*2); T0RH = (unsigned Char) (Reload >>8); T0RL = (unsigned Char) Reload; TH0 =0xFF; TL0 =0xFE; ET0 =1;//Enable T0 interruptTR0 =1;//Start T0}voidStopbuzz ()

With the rapid development of network technology, the wide application of Internet has become more and more demanding for communication media. Frame Relay (Frame-relay) is widely used for its communication stability, speed and price concessions, and the key to the use of frame relay is the configuration of routers. Here are some common routers of the frame

I would like to introduce you to the radio router relay function settings. Many people may not know about the radio router relay function settings. It does not matter. After reading this article, you will certainly have a lot of GAINS. I hope this article will teach you more things. Bridging of the radio router relay function You often encounter a situation where

, build a platform. in the case of (i), (iii), it is not a good condition for participation, and both cases will be accounted for in most proportions. in the second case, we analyze the value of subsequent participation. for the number of flat after a small upward form, the strength is insufficient, may turn down at any time, we do not pay attention. Since we choose to do super-strong high-power relay form, then the flat number of days to pull out

How to install and configure the Tor relay server in a Linux system-Linux Enterprise Application-Linux server application information. Today, the Tor Relay Service is successfully installed in Linux. The system platform is Fedora 8 and the Tor version is tor-0.2.0.19-alpha. Some minor problems have been solved successfully. The following are the installation and configuration procedures and solutions and ex

Digital Network. 3. Packet Switching Network: Through packet switching, network devices can share a point to transfer data packets between devices through the operator network. Packet Switching mainly uses the statistical multiplexing technology to achieve circuit sharing. Such as frame relay, ATM, and X.25. Frame-relay Frame relay is a grouping method used to

The wireless mesh network is comparable to a small-sized Internet, which can better play a wireless role in enterprises. Then, the wireless mesh network is also combined with other technologies to play a more powerful role. The following is a detailed description of the knowledge of Wireless Mesh Network + cooperative relay technology. Combination of Wireless Mesh Network and cooperative Relay Technology 1.

In the network protocol, we always emphasize the application of DHCP. Next, let's explain the DHCP Relay settings. We hope that you can master the specific operation methods and configuration steps. DHCP Relay setting function requirements and networking description Use DHCP Relay to bind IP addresses and MAC addresses "DHCP

During the learning process of the DHCP protocol, we should be able to find that the content of DHCP relay is a key point. Today, we will explain how to configure DHCP relay. In addition, when configuring DHCP relay, we should know about DHCP relay. This article mainly introduces how to use a vrodhcp to build DHCP. Aft

, convenient, so that the "global village" is true, but global with this yanliang, we are highly dependent on the Internet, but also formed a "one wing Rong Rong a loss of" the relationship between the Pacific Ocean, a butterfly flapping wings can affect climate change. Even the most developed of the Internet, "the United States" have not been spared, occasionally glitch, not to mention those infrastructure construction is not perfect, the Internet technology behind the country. If your business

In the production environment there is only one mediaproxy as a relay server in the case of rare, unless the user is very small, otherwise a single relay difficult to support a large number of relay services. Here we configure the single dispatcher multi-relay scenario, and configure the official web monitoring interfa

In some settings, we usually see the configuration of the DHCP relay function. In a TCP/IP-based LAN, communication between computers depends on the IP address of the host. Therefore, each server and workstation in the network must have a unique IP address. The IP address allocation method is very important for effective network management. IP Address Allocation Method Generally, IP addresses are allocated in two ways based on the local network struct

1.1.1. If A crash happens thisconfiguration does not guarantee that the relay log info would be consistent"Environment description"msyql5.6.14"Error Message"When MySQL slave starts, a warning warning appears in Error.log:[Warning] Slave sql:if A crash happensthis configuration does not guarantee that the relay log info would beconsistent, Error_code: 0This warning information has no effect on MySQL and MySQ

I. What is SQL relay? SQL relay is an open source database pool connected to the Proxy Server Ii. What databases does SQL relay support? * Oracle* MySQL* mSQL* PostgreSQL* Sybase* MS SQL Server* IBM DB2* Interbase* Sybase* SQLite* Lago* ODBC* MS Access 3. installation and configuration; Don't talk nonsense, start to Install SQL

I believe you have a preliminary understanding of the use of the DHCP server. Therefore, we need to study this part in depth. This time, let's talk about BOOTP/DHCP Relay Agents. Next let's take a look at the specific introduction. If you need to create multiple DHCP servers, but the DHCP server and the client are located in different network segments, your IP Router must comply with RFC1542, DHCP/BOOTP Relay