Skype is a great system to use for calling the DR, you need to have speaker and mic connected to your PC ... PC to PC is free and PC to landlines/mobiles are really cheap too.
Calling DR use 001 809 or +1 809
Calling UK from DR dial 0044 (drop first 0 of number) **** ****** or +4400 Same applies to texting, although we've only ever managed to text orange to orange (that's orange DR to orange UK or orange UK to orange DR)
Hope that helps
