update

Author: bryantanderson

fern/calls/call-ended-reason.mdx

@@ -41,12 +41,13 @@ These relate to issues within the AI processing pipeline or the Large Language M
 - **customer-ended-call**: The customer(end human user) ended the call for both inbound and outbound calls.
 - **customer-did-not-answer**: The customer didn't answer the call. If you're looking to build a usecase where you need the bot to talk to automated IVRs, set `assistant.voicemailDetectionEnabled=false`.
 - **customer-did-not-give-microphone-permission**: The user didn't grant the necessary microphone access for the call.
+- **assistant-did-not-receive-customer-audio**: Similar to **customer-did-not-give-microphone-permission**, but more generalized to situations where no customer audio was received.
 - **phone-call-provider-closed-websocket**: The connection with the call provider was unexpectedly closed.
 - **twilio-failed-to-connect-call**: The Twilio service, responsible for managing calls, failed to establish a connection.
 - **vonage-disconnected**: The call was disconnected by Vonage, another call management service.
 - **vonage-failed-to-connect-call**: Vonage failed to establish the call connection.
 - **vonage-rejected**: The call was rejected by Vonage due to an issue or configuration problem.
-- **sip-telephony-provider-failed-to-connect-call**: The SIP telephony provider failed to establish the call connection.
+- **sip-telephony-provider-failed-to-connect-call**: The SIP telephony provider failed to establish the call connection. Previously **sip-gateway-failed-to-connect-call**.
 
 #### **Other Reasons**