Some countries may block voip calls since they have equipment to find which users are using voip calls. If the message is encrypted and they do not have the tools to distinguish whether the packets are ordinary packets or voice packets, they would not drop the packets.
My question is in OBi110 is there any means such that the voice packets are encrypted such that the local telco does not know they are voip packets? Also can OBi110 have some feature of port number which are able to be changed automatically such as port number 80, 443.
YH