How much data/bandwidth does ClearCaptions Mobile use on my phone?

Your data/bandwidth usage is tied to how often you use your mobile phone to make or receive captioned calls.

The ClearCaptions Mobile app codex uses 84kbps in bandwidth. That equates to 640kb per minute of talk time. If you used captioned mobile calling (incoming/outgoing) for 245 minutes per month, that would equal 156Mb of data per month.