# 31408: Request Timeout

Log Level: ERROR

## Description

This indicates a Voice request timed out. Twilio returns this code during Voice SDK registration, unregistration, `connect`, and `CallInvite.accept` flows. For call-related HTTP requests, Twilio enforces a hard 15-second upper timeout on the initial response packet.

### Possible causes

* Your Voice webhook or other call-related HTTP request did not send the initial response packet within Twilio's 15-second read timeout.
* The call is on a restrictive network, and the Voice SDK cannot connect unless you provide ICE servers.

### Possible solutions

* Return TwiML from your Voice webhook within 15 seconds so Twilio receives a response before the read timeout expires.
* Use webhook connection overrides such as `ct`, `rt`, `tt`, `rc`, and `rp` when you need to tune callback behavior, but keep in mind that the 15-second hard limit still applies to call-processing requests.
* For `connect` and `CallInvite.accept` failures on restrictive networks, provide ICE servers with `ConnectOptions.Builder.iceOptions(...)` or `AcceptOptions.Builder.iceOptions(...)`.

#### Additional resources

* [Error and Warning Dictionary](/docs/api/errors)
* [Voice Webhooks](/docs/usage/webhooks/voice-webhooks)
* [Voice SDKs Network Connectivity Requirements](/docs/voice/sdks/network-connectivity-requirements)