
1-3
Call Processing Functions
The SMG-400 system provides the following call processing functions.
☞
DTMF Signaling
☞
DTMF Relay between PSTN and VoIP
☞
CDR (Call Detail Record) Generation
☞
RTP Traffic Channel Status Monitoring Functions (Delay, Loss, and Link Down)
System Management Functions
The SMG-400 system provides GUI interface, and a Standard Network Management Protocol
(SNMP) for easier management. The SMG-400 also provides the following system management
functions.
☞
Web-based Management
☞
Program change by TFTP Loading
☞
DHCP Client (IP address allocation by DHCP server)
☞
FTP, Telnet Interface
☞
CLI (Command Line Interface)
PSTN Routing
The SMG-400 system provides a function called PSTN rerouting (or PSTN Detour). PSTN
rerouting is used to reroute a call set by a VOIP to PSTN network bypassing an IP network in the
case of having poor QoS (Quality
o
f Service), or detecting IP network being busy or disconnected
or in error.