1. Updated the UI for Do Not Disturb mode.

1. Added Do not disturb mode.

1. Added Do Not Disturb mode.

1. Fixed an issue where the app would crash after randomly answering an incoming call.

1. Fixed the issue of the mute button randomly changing its position. 2. Added support for English department names.

1. Fixed an issue where the microphone could not be accessed during incoming calls. 2. Fixed an issue where calls were delayed and then hung up.

1. Support PJSIP related LOG information.

1.Modified the IP address change detected feature to only trigger during a call. 2. Modified the fax sender's name to use extension number instead of empty.

1. Added Fax function.

1. When the SIP ID is changed, the APP will prompt you to log in again.

1. Pin selected contacts to the top of the contact list for easy access. 2. Modify the app from displaying a missed call if the landline picks up the call. 3. iPhO APP can be opened from the phone call history.

1. Add default value to SIP connection status field.

1. When checking for SIP port changes, receive a push notification and then log out.

1. When checking the SIP port change, a prompt will pop up and then log out.

1.Modify status bar background display color.

1. Added the ability to display the number of missed calls.

1. Fixed APP crash when receiving voicemail push notification messages.

1. The dialing input box has a new cursor function, which can add, copy or delete numbers.

1. Numeric keyboard can copy and insert numbers.

1. Fixed the problem of unclear sound after LTE network switching.

1. Support sending DTMF when the screen is locked. 2. Support trust relationships

1. Automatically Convert new Domain name.

1. Optimize the conference setting function. 2. Optimize UI for iPhone Pro Max.

1. Add missed call notification function.

1. Added support for TLS function. 2. Correct the behavior when the network is disconnected when making a call. 3. Logout mechanism when new account is not enabled.