Delivering less expensive PBX systems—one of the great
promises of IP telephony
—means delivering less expensive
phones.
Phones are central to the economy
of voice systems.
The good news is
that IP-based PBX phones are no more expensive
than they ever were.
The bad news is that, despite
more vendor options than ever before, IP PBX phones
will not commoditize anytime soon.
Enterprises with multiple sites are saving
money on tielines by replacing TDM-based systems
with IP-PBXs and networking them over IP.
IP-based
PBXs deliver more station features than TDMbased systems.
If you
hear poor voice quality on a low-end phone, it’s a
safe bet that the vendor has skimped on the
phones’ digital signal processors (DSPs) in an
effort to preserve their margins.
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Our IP PBX Phones
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Compatibility
Any H.323-compatible IP phones can be used as a terminal equipment, as well as H.323 IP-Adapters.
The WOIP terminal equipment obviously fits all those requirements and prove to be the optimal solution.
Location Concept
Several of our PBX’s can be connected using the Internet Protocol (IP) and administrated on a centralised basis.
It is possible to have a centralised numbering plan on the central PBX as well as local numbering plans.
The locations are reachable via a prefix. All of our PBX systems are fully functional even if the IP connection between the locations should fail.
Redundancy Concept
A sophisticated redundancy concept ensures a maximum of availability. As long as a second Gateway is installed in the Network this
can be configured as a standby PBX. While operating, all data will be held up to date automatically. In the unlikely event
of the failure of the master PBX the second system automatically takes over.
Security
The WOIP PBX supports encrypted authentication for every user, using the H.323 security standard H.235.
The configuration applet is secured through encrypted passwords. Voice data, transmitted over the public internet, can be secured by setting up a secure VPN tunnel.
Software interfaces,TAPI, VoIP-CAPI and XML SOAP-API
For the integration of 3rd party software the WOIP PBX offers several interfaces.
The Telephone API (TAPI) of Microsoft has been established as software interface for PBX’s.
The VoIP-CAPI corresponds with the ISDN Interface and enables a high variety of applications
to interoperate with the WOIP PBX. With the XML-based SOAP-API applications can use the WOIP
PBX specific features and functionalities. Obviously applications can interact with the PBX using H.323 or query the Call Detail Record (CDR) information.
Additional Applications
for the WOIP PBX the following applications are available:
- PC based Operator Console
- a voice mail solution
- a unified message package (UMS)
- a billing software solution
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