I am trying to setup VAPI with Telynx. After completing the setup, i made a call from my mobile number. The AI agent is not able to understand me on speaker phone. I have to turn it off and almost yell for it to understand me. When i heard the recordings, i figured that its taking it as a noise. Call ID 3d126c09-fe08-4200-8633-e2d9caa66f3e => Jul 26, 2025, 12:13 for 29s Call ID cf0378f0-9145-483d-b977-2d6187e79bbb => Jul 26, 2025, 11:55 for 1m 5s The recording it just coming up as noise. Kindly assist

The issue is with Telnyx Programmable Voice—it sends poor-quality audio to Vapi, so the agent hears noise. Use Telnyx SIP Trunking instead of Programmable Voice (clear audio but no auto transfers). Force codecs to PCMU/PCMA (disable G.722). Try a transcriber tuned for phone audio.

Hey! To help track down this issue, could you share: \- The call ID \- When exactly this happened (the timestamp) \- What response you expected to get \- What response you actually got instead This would really help us figure out what went wrong!