Hi I have set up a sip client on my PC. The provider (sip2sip) provides its own client. I've also downloaded zoiper on my smartphone.
When I dial from Blink to Zoiper the call is received (even caller id shows) but when I try to dial from Zoiper to Blink, Zoiper returns an error message "no route matched".
Could anyone explain (in non tech savvy language please) how I can fix this problem?