Hi, I have installed an asterisk pbx in our company, and now I have installed the ZOIPER in my android phone.
I have a Sonicwall Firewall NSA240, I have created the nat policies to allow the access from outside to the pbx. In the Firewall I have 2 connections - VSAT and Wimax. The Vsat only works for the link to join our main office in another country trough PBX and the wimax is the access to internet, email and now the PBX to the android phones of the workers.
In my first testings I am having problems where I can connect the SIP link, but when making calls I get no audio and the person on the other side cant ear me.