Configurations
of GSM/VoIP networks allow the service providers to avoid the local Wired
Public Switched Network (PSTN) in communication with a GMS mobile handset. As a
result, the high rates charged by telephone companies are avoided.
According to the American Marketing Association, - "Marketing
is the activity, set of institutions, and processes for creating,
communicating, delivering, and exchanging offerings that have value for
customers, clients, partners, and society at large." A company, which
provides marketing services, should be capable of doing all the above listed.