Default [Q] Bluetooth calling

I am having problems using Jabra Freeway to make calls. whether I uise S-Voice or google, when it calls one number in my contacts it works. When i try again a second time i get server error in S-Voice or google just closing. I dont understand why the first call works fine then the second one doesnt. After a reboot it will work okay again. Any ideas on how to fix this issue?