[ iOS ] Main Changes in Version 1.4.2 are the following.
- A ringback tone starts ringing sooner even if the other person hasn't launched the app.
- Improved stability and bug fixes.
The connection speed (in making calls) gets improved.
A ringback tone starts ringing sooner and connection gets faster even if the other person hasn't launched the app.
If the other person uses version 1.4.1 or an older version, the connection speed is as usual.
