Telecommunication requires dedicated premium quality bandwidth to operate because public internet is not reliable and secure. As well as speed is not available as promised all the time. So, telco grade premium bandwidth is very expensive and it is not available everywhere. Reducing operating expense is a key to success for any business and for GSM VoIP Termination bandwidth price is one of the major expenses.
Security on the internet is a major threat today, and it is important for the business to be sniffing proof, encrypted and secured. And most importantly, performance of the termination must be up to the mark to operate profitablly.
All of these, you are getting for a very competitive rate.