Ja koristim Telna: www.telna.com
Njihove tarife su:

Dialing direct from any landline (no access number), or dialing our toll-free access number (1-866-...) from any landline or cellphone, you can call:
Serbia for 9.9¢ per minute
Serbia - Alternative Operators for 44.9¢ per minute
Serbia - Cellular Other for 27.9¢ per minute
Serbia - Cellular Telekom Srbija for 27.9¢ per minute
Serbia - Cellular Telenor for 27.9¢ per minute
Serbia - Cellular VIP Mobile for 27.9¢ per minute
Serbia - Premium for 99¢ per minute (this Premium rate only applies on calls to non geographic numbers most often weather forecast, stock market quotes, banking services, chat lines, VOIP services...)

Dialing our cellphone specific dial-around access number (1-917-...) from most cellphone plans, you can call:
Serbia for 8.9¢ per minute
Serbia - Alternative Operators for 43.9¢ per minute
Serbia - Cellular Other for 26.9¢ per minute
Serbia - Cellular Telekom Srbija for 26.9¢ per minute
Serbia - Cellular Telenor for 26.9¢ per minute
Serbia - Cellular VIP Mobile for 26.9¢ per minute
Serbia - Premium for 98¢ per minute (this Premium rate only applies on calls to non geographic numbers most often weather forecast, stock market quotes, banking services, chat lines, VOIP services...)