技术细节
| 接口 |
4 / 8 analog FXO, RJ11 |
V7111 Analog (2 FXS, 2 FXO)
3Com® VoIP gateways help enterprises migrate to IP communications using
an economical overlay strategy that aligns financial considerations with
performance needs and lays the foundation for a successful deployment
of Session Initiation Protocol (SIP)-based applications. The gateways
enable interoperability between legacy equipment and applications—
including PBXs, the public switched telephone network (PSTN), analog
phones and fax machines—and a converged IP network. 3Com digital
gateways provide all necessary functions and protocol support for handling
voice calls between traditional circuit-switched phone networks and an
IP network. 3Com analog gateways, including both FXS and FXO models,
let analog phones and other legacy analog devices use 3Com SIP-based
IP telephony features.
KEY BENEFITS
MAINTAIN UNIVERSAL CONNECTIVITY
With 3Com VoIP gateways, organizations can retain PBXs and analog
devices for operational or budgetary reasons while they implement IP
telephony in a phased overlay. Employees can continue to use familiar
equipment and interfaces, including dialing plans, email systems, fax
machines and modems. The SIP-compliant gateways may be positioned
between the IP network and any brand of PBX to deliver calls or applications
such as the SIP-based conferencing and call center capabilities
of the 3Com Convergence Applications Suite.
IMPLEMENT REMOTE SITE SURVIVABILITY
In environments where remote branch sites are dependent on a single
wide-area IP network connection to the 3Com IP Telephony Module, a
local analog gateway enables incoming and outgoing calls to the PSTN.
This capability provides telephony survivability and business continuity
for the remote site even if its IP connection has been compromised.
REDUCE TELEPHONY COSTS
As part of a converged communications solution, the gateways let enterprises
reduce PSTN costs by implementing least-cost routing features
delivered by the 3Com IP telephony platform. To minimize long distance
calling charges, calls can be routed to the most cost-effective gateway.
Plus, remote sites can retain PSTN connections for supporting
local Direct Inward Dialing (DID or DDI) numbers, and for receiving the
lowest local call tariffs from their communications service provider.
