Inventors:
Bruce Levens - Natick MA
Paul R. Kerr - Natick MA
William S. Hoge - Boston MA
Daniel F. Daly - Holbrook MA
Assignee:
NMS Communications Corporation - Framingham MA
International Classification:
H04J 312
Abstract:
A method of facilitating telephony communications over a packet-switched network includes detecting signaling tones in an audio stream and blocking them from the stream in response to the detecting. After the blocking, the audio stream is sent over an undependable channel in the packet-switched network. The detected signaling tones can be sent over a dependable channel instead of the undependable audio channel.