I am using FreePBX and I have an issue with my softphones not staying online on mobile devices (iPhone5) after a few minutes of inactivity. That is, if I exit the app (Zoiper and Linphone) while keeping the phone unlocked or when I exit the app and lock the phone. I have the same softphones on desktop and they stay online as long as the PC is on.
Has anybody had the same issue and found a solution to get them to stay online 24/7 just like they do on desktop and my regular SIP phones?
Thanks in advance.