G.723.1 is an audio
CODEC[?] for voice that compresses voice audio in chunks of 30 milliseconds. Music or tones such as
DTMF or
Fax tones cannot be transported reliably with this CODEC, and thus use
G711[?] or
Out-of-band[?] methods to transport these signals.
G.723.1 is mostly used in Voice over IP (VoIP) applications for its low bandwidth requirement.
- Their are 2 rates:
- 6.3 Kbits/s (24 bytes chunks)
- 5.3 Kbits/s (20 bytes chunks)
See also G711[?], G729[?]