I'm using Zoiper Biz 3.9.32144 on Win 7.1, wired up to a Plus.net fibre router which achieves >10Mb upload/download bandwidth, <10ms jitter, <20ms ping.
I have setup port forwarding as Zoiper was unable to receive calls, but I can't make calls.
I have forwarded:
Port 5060 (UDP) to the fixed IP of the Windows PC running Zoiper
Port 49104 to 49120 (UDP)
Port 3478 (UDP)
I can receive calls, but not make a call.
1) What ports do I need?
2) What can I do to stop getting hundreds of calls from 1000 - which I gather is a hacking software called SIPVICIOUS?
Any assistance would be gratefully received.