When use VOIP service with a VOIP adapter, you have to choose the codec. The codec is very important. Unsuitable codec will make your call intermittently. Codecs are settings used to fine-tune the audio compression of your VoIP devices. Different codec needs different bandwidth. The following protocol header assumptions areContinue Reading

The following IP Ports and Protocols are excerpted from Networking Fundamentals. Port number – Protocols name 20 – File Transfer Protocol (FTP) data 21 – File Transfer Protocol (FTP) control 23 – Telnet 25 – Simple Mail Transfer Protocol (SMTP) 53 – Domain Name Service (DNS) 80 – HyperText TransferContinue Reading