SMG Digital Gateway
21
1.4
Main Specifications
Table below lists main specifications of the terminal.
Table 1 — Main specifications
VoIP Protocols
Supported protocols
SIP-Т/SIP-I
SIP
SIP-Q
H.323v2/v3/v4
MGCP
1
MEGACO
SIGTRAN (M2UA, IUA)
SIGTRAN (M3UA)
1
T.38
Audio Codecs
Codecs
G.711 (A/U)
G.729 AB
G.723.1 (6.3 Kbps, 5.3 Kbps)
G.726 (32 Kbps)
Quantity of VoIP channels supported by a submodule depending on the codec type
Codec/packetization time, ms
Channel quantity
G.711 (A/U) / 20-60
G.711 (A/U) / 10
G.729 A / 20-80
G.729 A / 10
G.723.1 (6.3 Kbps, 5.3 Kbps)
G.726 / 20
G.726 / 10
Т.38
128
112
72
62
58
98
88
54
TDM channels per 1 submodule
128
Three-way conferences per 1 submodule
27
Electrical Ethernet interface specifications
No. of interfaces
SMG-1016M
SMG-2016
3
4
Electric port
RJ-45
Data rate, Mbps
Autodetection, 10/100/1000Mbps
duplex
Supported standards
10/100/1000BaseT
Optical Ethernet interface specifications
No. of interfaces
SMG-1016M
SMG-2016
2
2 combo ports
Optical port
Mini-Gbic (SFP):
1) duplex, double fiber, wave length 1310nm (Single-
Mode), 1000BASE-LX (LС connector), distance — up to
10km, supply voltage — 3.3V
2) duplex, single fiber, reception/transmission wave
lengths 1310/1550nm, 1000BASE-LX (SC connector),
distance — up to 10km, supply voltage — 3.3V
Data rate, Mbps
1000Mbps, duplex
Supported standards
1000BaseX
1
Not supported in the current firmware version.