---
title: "Changes to Transfer call"
method: POST
path: "/calls/{call_control_id}/actions/transfer"
---

# Changes to Transfer call

`POST /calls/{call_control_id}/actions/transfer`

> Every recorded change to this endpoint, newest first.
> 99 revisions in range; 1 not diffed.

## Timeline

Changed in 5 of 99 revisions.

- **2026-09-23** `eaf7ad0b9886` — 7 info
- **2026-09-16** `a6a61a29ecdd` — 2 info
- **2026-08-17** `1571b0380bd7` — 4 breaking
- **2026-08-04** `8f5f4e537994` — 4 breaking
- **2026-07-23** `07249db24995` — 1 info

## Changes

- **2026-09-23** `eaf7ad0b9886` — 7 info
  - added the new optional request property `answering_machine_detection_config/beep_max_frequency_hz`
  - added the new optional request property `answering_machine_detection_config/beep_min_frequency_hz`
  - added the new optional request property `answering_machine_detection_config/beep_min_tone_duration_millis`
  - added the new optional request property `answering_machine_detection_config/beep_spectral_confirmation`
  - added the new optional request property `answering_machine_detection_config/beep_spectral_min_purity`
  - added the new optional request property `answering_machine_detection_config/beep_spectral_reject_fax_cng`
  - added the new optional request property `answering_machine_detection_config/beep_spectral_window_millis`
- **2026-09-16** `a6a61a29ecdd` — 2 info
  - added the new optional request property `answering_machine_detection_config/beep_detection_profile`
  - added the new optional request property `diversion`
- **2026-08-17** `1571b0380bd7` — 4 breaking
  - the `webhook_urls/additionalProperties/` request property type changed from `string` to `array`, and format from `uri` to no format
  - the response's body type changed from `object` to no type for status `default`
  - the `errors/items/` response's property type changed from `object` to no type for status `default`
  - the `errors/items/code` response's property type changed from `integer` to `string`, and format from `int32` to `integer` for status `default`
- **2026-08-04** `8f5f4e537994` — 4 breaking
  - the response's body type changed from no type to `object` for status `default`
  - the `errors/items/` response's property type changed from no type to `object` for status `default`
  - the `errors/items/code` response's property type changed from `string` to `integer`, and format from `integer` to `int32` for status `default`
  - the `errors/items/source/pointer` response's property format changed from `json-pointer` to no format for status `default`
- **2026-07-23** `07249db24995` — 1 info
  - added the new optional request property `route_to_mobile`

---

[Operation](https://skmtc.dev/team-telnyx/apis/telnyx-api-2/docs/calls/:call_control_id/actions/transfer/post.md) · [API](https://skmtc.dev/team-telnyx/apis/telnyx-api-2.md) · [Page](https://skmtc.dev/team-telnyx/apis/telnyx-api-2/changes/calls/:call_control_id/actions/transfer/post)