I'm having a problem with the Telnyx SIP connection. Since I left it connected like this, calls aren't coming in. They take a long time, and now it doesn't detect whether someone answers or not, even if they're voicemail. I'm being charged for this error alone. With the default connection, by simply adding the number and password, it did identify the calls and didn't have these charges. The SIP connection is supposed to be more functional, but Vapi doesn't identify them now.