SOLUTIONS
Virtual Office Solution
Hosted PBX system based on VoiceMaster and Tornado M5 IP Phones
can be used for delivery of Virtual Office communication services
to SOHOs and SMBs customers. The Virtual Office solution enables
employees to call other employees who work either in local or remote
locations by simply dialing their extensions (no need to make long
distance/international calls). All employees use IP phones, such
as the Tornado M5 IP Phone, instead of their regular phones to make/receive
calls; the central call management server (VoiceMaster) provides
call routing and billing. Since calls are transported over the Internet
they are practically free which eliminates phone bills for intra
and inter office telecommunications. The Virtual Office solution
offers additional flexibility for mobile workers: they can carry
their IP Phones with them while travelling and make/receive calls
from any location with Internet access, such as hotels, hot spots,
airports etc.
There are several calling plans (scenarios) in a Virtual Office
solution that are covered in details below:
Unified Voicemail Calling Plan
Virtual Office solution enabled by VoiceMaster/Tornado can be used
for delivery of unified voicemail services across the globe. Callers*
place calls to the Virtual Office system which are received by the
VoiceMaster server and rerouted over the Internet to the subscriber’s*
IP Phone, such as Tornado M5. Since the connection between VoiceMaster
and the IP Phone is over the Internet, subscribers can receive calls
at any location with Internet connectivity. If the call is not answered
within preset number of rings, the VoiceMaster server forwards it
to the subscriber’s voicemail. Once a voicemail is left, the
system delivers it to the subscriber through email (as a wav
file attachment). Alternatively, the subscriber can receive voicemail
notification and download the voicemail file from a web site.
Inbound Calling Plan

The inbound calling plan diagram explains how callers can reach
subscribers. In that scenario, callers dial a regular PSTN number
(e.g. 1-201-225-3540) that is associated with a unique subscriber
account. All calls to such number are automatically converted to
data packets and send over the Internet to the VoiceMaster server
for processing. Using information about the origination PSTN number
(DID), VoiceMaster decides which subscriber should receive the call
and routes it accordingly. When the subscriber picks up his/her
IP phone, he/she can converse with the caller, enjoying all traditional
PBX features, like call-on-hold, call-forwarding etc.
Inbound Calling Plan
The outbound
calling plan diagram explains how subscribers can place calls to
regular PSTN phones (e.g. 1-301-355-4678). When subscriber picks
up his/her IP Phone and dials a number, the VoiceMaster server receives
that information and decides whether to authorize the call (e.g.
system administrators can place restrictions on international calls).
Once the call is authorized, the VoiceMaster server decides where
the call should be send to and routes it to a termination gateway
typically owned by a third party. The gateway connects the call
to the destination PSTN number. As with inbound calling plan, during
the call, the subscriber can enjoy all traditional PBX features,
like call-on-hold, call-forwarding, etc.
In-network Calling Plan

The in-network calling diagram shows how subscribers can reach
other subscribers. When a subscriber picks up his/her IP Phone and
dials the extension of another subscriber, the VoiceMaster server
receives the request and routes the call to the I P phone of the
destination subscriber. The destination subscriber then picks up
the phone and starts conversing. During the call, both parties can
enjoy traditional PBX functionality like call-on-hold, call forwarding,
etc.
Call Forwarding Calling Plan

The call forwarding calling plan diagram illustrates how callers
can reach subscribers on their primary and alternative phone numbers
through using the call forwarding functionality. When a caller calls
a subscriber of the Virtual Office system from a regular phone,
his call is converted into data packets by the call origination
gateway and routed to the VoiceMaster system. Upon receiving the
call, the system determines its destination based on the PSTN number
the call is placed to (DID) and locates in its database the corresponding
subscriber. The call is routed to that subscriber’s IP Phone
and if not picked within a preset number of rings, is re-routed
(forwarded) to an alternative number(s). The system rings the list
of alternative numbers either sequentially or in parallel. If the
call is not picked up within the preset time limit, it is being
forwarded to subscriber's voicemail box.
* The term “caller” is used to describe the party
that is not an user of the Virtual Office system (e.g. a customer
calling to a business) whereas the term “subscriber”
refers to a user of the system (e.g. business employee).
|