A Quality of Service Comparison
Globalstar provides superior voice quality and the industry's best data call speeds and success rates.

There are many factors that go into a decision to purchase satellite telephones. None are more important than the ability to complete calls with clarity and reliability. In a recent technical study performed by independent research firm Frost & Sullivan, Globalstar has been shown to consistently outperform its main competitor in both voice and data
transmission.

Here are some highlights:

"…the main differentiator was audio quality. Under all types of conditions, Globalstar showed time and time again a significant and measurable superiority over the Iridium system in this aspect".

"…side-by-side testing shows that the Globalstar system offers a relatively superior data rate compared to the Iridium system under all conditions. This is not unexpected, given the basic technical differences that are inherent in the design of
each system."

Download the entire study: Satellite Telephone Quality of Service Comparison: Iridium vs.
Globalstar

Independent research firm Frost & Sullivan tested both systems over several weeks,
making hundreds of voice and data calls from different locations and under a variety of
physical conditions to simulate typical usage of the phones in both urban and remote
environments. Measurement criteria included:

• Voice quality
• Call completion
• Call drop rates
• Data throughput

Courtesy, the Frost & Sullivan Report