I'm testing LiveKit agents connected to Twilio via SIP and I noticed 2 problems: 1. Sometimes, when I call the Twilio number, the bot picks up the phone quickly but takes ~10-20sec to start speaking a. Why does this happen ? Can I do something to fix it ? 2. In the browser, STT works very well, but when I'm on the phone, it sometimes struggles a lot to actually detect speech. I end up, during multiple calls with the bot thinking I'm not talking, even though I am. I have to speak very loud and close to the mic so the STT gets triggered a. Why does this happen on the phone and not in the browser ? Can I do something to fix it ?

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