Software applications designed to facilitate telephone communication across international borders are now commonplace. These applications leverage Voice over Internet Protocol (VoIP) technology to transmit audio data over the internet, rather than traditional telephone lines. For instance, a user in the United States can employ such an application to contact a recipient in Spain using a smartphone or computer.
The prevalence of these applications has significantly reduced the cost associated with overseas communication. Historically, international calls incurred substantial charges due to the infrastructure and routing complexities involved. Furthermore, these apps often incorporate features such as video conferencing, instant messaging, and file sharing, augmenting their utility beyond basic voice communication. Their accessibility has fostered increased global connectivity for both personal and professional interactions.
