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I am using Groundwire as a softphone and Telnyx as a carrier. Everything works fine if I am on WiFi. However, when I am on cellular data (AT&T) I get a SIP 413 error response when trying to make an outbound call. I can still receive calls. If i switch to SignalWire as the carrier I am able to...

I am trying to configure the SMS app to work with Telnyx. I am able to send and receive SMS, however when I try to receive an MMS, the email comes in with the attachment still encoded, and I receive the email twice. I am not a developer but know enough to get around. It seems the headers are...