Captioned telephone service system for detecting and alerting peers return to call

A captioned telephone service (“CTS”) system, comprising:

• a CTS server for providing a transcription service to a user during a phone call between the user and a peer;
• a user device, which is constructed to be connected to the CTS server for the phone call between the user device and a peer device;
• and
• a user application installed on the user device,
• wherein the CTS server is connected to a call agent or an automatic speech recognition engine for the phone call to provide the transcription service,
• wherein the CTS system is configured to provide a call resumption alert module to the user such that the call resumption alert module sends an alert to the user to assist the user in re-engaging with the phone call,
• wherein the user application is configured for the user to enable or disable the call resumption alert module,
• wherein the call resumption alert module comprises:
• a call resumption checking module for checking whether the phone call resumed from the peer device;
• and
• an alert module for generating the alert upon receiving a call resumption message from the call resumption checking module.