What type of bandwidth is required for Catalyst VoIP products?
Catalyst VoIP products are low bandwidth applications. The need for bandwidth is typically for short duration due to the PTT nature of mobile radio, and when bandwidth is required, it frequently is less than 30 kilobits per second. This is because most Catalyst customers take advantage of voice compression technologies with minimal degradation of voice quality. In addition to standard 64 kilobit per second uncompressed digital voice (PCM), Catalyst products offer ADPCM at 32 kilobits per second, Microsoft GSM at about 13 kilobits per second, and Microsoft TrueSpeech ® at about 10 kilobits per second.
