Voice/Fax/Modem over IP

Voice/Fax/Modem over IP
Voice/Fax/Modem over IP
(with Payload Type Discrimination)
Echo
Canceller
(ECU)
G.165/168
Tx
Gain
Voice
Activity
Detection
and
Tone
Detection
Unit
Rx
Gain
PSTN
Fax Data Pump
Unit (FDPU)
Interface
ITU
V.34fax - V.17
V.33 - V.29
V.27ter - V.21
Unit
(PIU)
Modem Data
Pump Unit
(MDPU)
ITU
V.92 V.91
V.90 V.34
V.32bis V.32
V.23 V.22bis
V.22 V.21
Voice Codec
Unit (VCU)
ITU
G.711- G.722.1
G.723.1 - G.726
G.727 - G.728
G.729/A/B/E
ETSI
GSM
FR/EFR/AMR
Voice
Playout
Unit (VPU)
Packetized
Voice
Protocol
Unit
(PVPU)
RTP
Payload
Type
Voice
(RTP-PTV)
AAL2
Fax Protocol Relay Unit
(FPRU)
ITU
T.37 - T.38 (v1, v2) - T.38 RTP
Payload Type Fax (RTP-PTF)
VoIP
Packet
Network
FoIP
Interface
Fax Protocol Termination Unit
(FPTU)
ITU AT Commands (V.25x)
T.30 - T.6/T.4/JBIG Image Format
Conversion
Data Error
Correction Unit
(DECU)
Data
Compression
Unit (DCU)
ITU
V.42
MNP2-4
ITU
V.44
V.42bis
MNP 5 - 10
AT
Command
Unit (ATCU)
ITU
V.250 V.251
V.252 V.253
Signaling, Software Integration Management for all the Modules
Unit
(PNIU)
Network
Encapsulation
Unit (NEU)
SLIP
PPP
RTP Payload
Type Modem
(RTP-PLM)
MoIP
http://www.vocal.com
© 2001
Technologies, Ltd.
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