Summary:
Request to improve the success rate of fax transmissions over VoIP, addressing common issues such as packet loss, jitter, and incompatibility with older fax machines. This feature enhancement aims to increase the reliability of VoIP faxing, especially for customers who depend on faxing for business-critical functions.

Proposed Solution:

Automatic Error Detection and Correction:
Implement built-in error correction within the VoIP fax system to compensate for packet loss or jitter, reducing reliance on manual user adjustments.

Dynamic Speed Adjustment:
Automatically detect the quality of the fax connection and adjust the BAUD rate dynamically for better reliability in real-time, without requiring users to adjust settings manually.

ECM Toggle Option in the VoIP Portal:
Provide an option in the RingCentral VoIP admin portal or user interface to enable or disable ECM, allowing users to control this feature without manually adjusting their fax machines.

Improved Protocol Handling for Multi-page Faxes:
Enhance the T38 protocol handling to improve the success rate of multi-page fax transmissions, potentially by optimizing the data flow over VoIP lines.

Compatibility Check:
Introduce a compatibility check that identifies when a sender's fax machine is likely to struggle with VoIP, prompting the sender to make appropriate adjustments or recommending landline use for critical faxes.