Is there a way to force ZRTP? Without ZRTP, it must hang off the call without letting people talk.Thanks
The free version doesn't support ZRTP. You need to upgrade to Zoiper Gold if you wish to force ZRTP.
Yes I'm using Zoiper Gold. But sometimes the call activates ZRTP, and sometimes it doesn't.
ZRTP uses end to end key negotiation. In order to use it both parties must support that feature.
Yes of course I already knew that and took that in consideration. I hope somebody can answer my question. Thanks