Specifications
System Overview
Planning and Installation Guide 2 – 13
software and configuration information. Except for a highly reliable fan, the voice
switches have no moving parts (for example, no hard drive). Internal sensors
automatically monitor the fan as well as the temperature, and if any failure occurs the
system can automatically notify the system administrator, through e-mail if desired.
The voice switches include the necessary DSP technology to enable toll-quality voice,
with features such as echo cancellation, voice compression, and silence suppression.
Each ShoreGear voice switch connects to the IP network using a 10/100M Ethernet
port. If more sites or ports are required, you simply connect additional ShoreGear voice
switches to your IP network. The system is inherently scalable, unlike legacy PBX
systems that have hardware breakpoints with line cards, shelves, cabinets, and systems.
ShoreGear voice switches reboot in less than 60 seconds, providing fast fault recovery.
ShoreGear voice switches feature a backup operator in case the site operator is
unreachable due to network outages. To use this feature, configure port 9 on
ShoreGear-120/24 and ShoreGear-60/12, port 5 on ShoreGear-40/8, or port 2 on
ShoreGear-Teleworker as an operator extension and connect a phone to the port.
ShoreGear-120/24
The ShoreGear-120/24 supports 24 analog ports (8 universal telephone/trunk ports and
16 telephone ports), or up to 120 IP phones. The ShoreGear-120/24 interfaces to
standard analog trunks using loop-start or wink-start signaling, as well as to standard
analog telephones, including CLASS feature phones with Caller ID Name and Number,
and Message Waiting. This switch also supports basic media encryption at the
application layer.
ShoreGear-60/12
The ShoreGear-60/12 provides 12 universal analog ports (8 universal telephone/trunk
ports, 4 telephone ports) and 60 IP phones. The ShoreGear-60/12 interfaces to standard
analog trunks using loop-start or wink-start signaling, as well as to standard analog
telephones, including CLASS feature phones with Caller ID Name and Number, and
Message Waiting. This switch also supports basic media encryption at the application
layer.
ShoreGear-40/8
The ShoreGear-40/8 supports 8 analog ports (2 universal telephone/trunk ports, 2
loop-start trunk-only ports, and 4 telephone ports), or up to 40 IP phones. The
ShoreGear-8 interfaces to standard analog trunks using loop-start or wink-start
signaling, as well as to standard analog telephones, including CLASS feature phones
with Caller ID Name and Number, and Message Waiting. This switch also supports
basic media encryption at the application layer.
ShoreGear-T1
The ShoreGear-T1 provides high-density trunking to the central office using T1 or PRI
or QSIG signaling. It can also be used as a gateway to legacy PBX systems. This switch
also supports basic media encryption at the application layer.
The QSIG protocol handles the signaling between digital private branch exchanges
(PBXs) for Integrated Services Digital Networks (ISDN), and is based on the Q.931
standard. By designating network elements as master or slave, QSIG handles the basic
signaling functions of call setup, handshaking, and call teardown, and allows PBXs
from different third-party vendors to communicate and interoperate. QSIG is based on
ECMA standard (see ECMA-142 and ECMA-143 for more information), and supports