Application Settings

4. SETTINGS

4.1. Single Call Mode: keep selected
4.2. Ringtone: leave empty (allows custom ringtone)
4.3. Play ringtone on: Keep Default
4.4. Play call on: Keep Default
4.5. Microphone: Keep Default
4.6. Microphone amplification: Do not select
4.7. Software volume adjustment: Do not select
4.8. VAD, Opus 2ch, Force Input Codec: Do not select
4.9. EC: select only this option
4.10. Source Port and RTP Ports: default 0 and rport: select
4.11. DNS Server: leave blank - DNS SRV: do not select
4.12. STUN Server: do not select and do not fill
4.13. Call recording: do not select (if selected, it defines a local storage path - check LGPD law requirements before enabling this option)
4.14. DTMF Method: select Auto
4.15. Auto Answer: Control button
4.16. Forwarding: select no
4.17. Block incoming call: select Control Button
4.18. User directory: keep empty
4.19. Default action list: select Default
4.20. For remaining options, select only:

Keypad tones
Show on top when receiving a call
Run at system startup

HIT Phone application settings screen

What the image shows: settings screen with recommended parameters for HIT Phone operation

Search terms: Application settings · EC · DTMF Auto · rport