IP Telephony Deployment Considerations
Two factors make telephony successful: high speech quality and high service availability. Take away the speech quality and make the service unpredictable, and telephony falls apart as an effective business communications tool. Speech quality tends to be subjective, whereas service availability is more readily subject to measurement. International standards in the form of ITU-T recommendations define methods to quantify the voice quality of a telephone call because service availability without speech quality is not enough for any telephony solution to be successful.
ITU-T recommendations P.800 (Methods for subjective determination of transmission quality) and P.800.1 (Mean Opinion Score [MOS] terminology) ...
Get Cisco Network Design Solutions for Small-Medium Businesses now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.
