Monthly Archives: September 2014

Introduction to Audio Codecs

Getting that perfect sound quality in a call is the ultimate VoIP Nirvana. In this post I’ll (try to) explain in layman’s terms how audio is captured and transmitted from what is spoken to what is heard. Speech is produced in analogue form, this … Continue reading

Posted in Audio Coding, Audio to digital, PCM | Leave a comment

Understanding ISDN

Even though we would like to believe that SIP Trunking is becoming more prevalent, the current status (at least in New Zealand) is that many are still using ISDN to deliver PSTN connectivity. This means that when deploying a Lync Enterprise Voice … Continue reading

Posted in ISDN Cable, ISDN PIN outs, Understanding ISDN | 2 Comments