ELTEX SMG-4 - Main Specifications

12 SMG digital gateway
Fig. 1.6—SMG firmware architecture
1.4 Main Specifications
The main specifications of the terminal are provided in the following tables:
Table 1.1 —Main Specifications
VoIP Protocols
Supported protocols
SIP-Т/SIP-I
SIP
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)
CLEARMODE (RFC 4040)
Number of VoIP Channels Supported by a Submodule Depending on the Codec Type
Codec/packetisation time, ms
Number of channels
SMG-2/SMG-4 with SM-VP-M300
submodule
SMG-2 with SM-VP-M200
submodule
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
104
74
48
41
39
65
59
36
Electrical Ethernet Interface Specifications
No. of interfaces
1
Electric port
RJ-45
Data transfer rate, Mbps
Auto detection, 10/100/1000 Mbps,
duplex