Webex

Webex External Voicemail API

Operations related to external voicemail Message Waiting Indicator (MWI) status.

GitHub OpenAPI

Operations 25

POST /telephony/calls/dial Dial #
POST /telephony/calls/answer Answer #
POST /telephony/calls/reject Reject #
POST /telephony/calls/hangup Hangup #
POST /telephony/calls/hold Hold #
POST /telephony/calls/resume Resume #
POST /telephony/calls/mute Mute #
POST /telephony/calls/unmute Unmute #
POST /telephony/calls/divert Divert #
POST /telephony/calls/transfer Transfer #
POST /telephony/calls/park Park #
POST /telephony/calls/retrieve Retrieve #
POST /telephony/calls/startRecording Start Recording #
POST /telephony/calls/stopRecording Stop Recording #
POST /telephony/calls/pauseRecording Pause Recording #
POST /telephony/calls/resumeRecording Resume Recording #
POST /telephony/calls/transmitDtmf Transmit DTMF #
POST /telephony/calls/push Push #
POST /telephony/calls/pickup Pickup #
POST /telephony/calls/bargeIn Barge In #
GET /telephony/calls List Calls #
GET /telephony/calls/{callId} Get Call Details #
GET /telephony/calls/history List Call History #
POST /telephony/externalVoicemail/mwi Set or Clear Message Waiting Indicator (MWI) Status #
POST /telephony/calls/pull Pull #

Documentation

📖
Documentation
https://developer.webex.com/docs/messaging
📖
Documentation
https://developer.webex.com/docs/meetings
📖
Documentation
https://developer.webex.com/docs/admin
📖
Documentation
https://developer.webex.com/docs/cloud-calling
📖
Documentation
https://developer.webex.com/docs/contact-center
📖
Documentation
https://developer.webex.com/docs/devices
📖
Documentation
https://developer.webex.com/docs/broadworks
📖
Documentation
https://developer.webex.com/docs/ucm
📖
Documentation
https://developer.webex.com/docs/wholesale

Specifications

⚙
OpenAPI
https://raw.githubusercontent.com/api-evangelist/webex/refs/heads/main/openapi/webex-external-voicemail-api-openapi.yml

Work with this as data

Every API here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for apis

7 MCP tools reach this
  • find_apisBrowse and filter every API in the catalog.
  • get_api_artifactsOne API's artifacts, grouped by type.
  • get_openapiThe primary OpenAPI for this API.
  • find_similar_apisAPIs that look like this one.
  • apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
  • resolveTurn a domain, URL or GitHub org into the provider it belongs to.
  • find_cohortsEvery scored population of providers in the catalog.
All 92 tools →

Call it yourself

curl for this page
This API 
curl "https://apis.io/api/v1/apis/webex-external-voicemail-api"
All apis 
curl "https://apis.io/api/v1/apis?limit=25"

Discovery needs no key. Ratings and market analysis are Pro.

Get an API key

Free tier, no form to fill in. Signing in shares your email address with us — we store it to create your key and to recognise you if you sign in with another provider. See our Privacy Policy and Terms.

GitHub Google LinkedIn

A second provider on the same verified email joins the account you already have.

OpenAPI Specification

webex-external-voicemail-api-openapi.yml Raw ↑ 
openapi: 3.2.0
info:
  title: Webex Cloud Calling External Voicemail API
  version: 1.0.0
  description: The Webex Cloud Calling APIs enable comprehensive management of cloud-based calling services, including user provisioning, device assignment, call routing, feature configuration, and number management.
  x-provenance:
    method: harvested
    authored_by: Cisco Webex
    harvested_by: API Evangelist
    harvested_on: '2026-08-19'
    first_party: true
    note: Published by Cisco. Retrieved unmodified except for this x-provenance block.
    provider_published: true
  x-evidence:
  - type: source
    url: https://github.com/webex/webex-openapi-specs/blob/main/public-spec/webex-cloud-calling.json
  - type: raw
    url: https://raw.githubusercontent.com/webex/webex-openapi-specs/main/public-spec/webex-cloud-calling.json
tags:


# --- truncated at 32 KB (126 KB total) ---
# Full source: https://raw.githubusercontent.com/api-evangelist/webex/refs/heads/main/openapi/webex-external-voicemail-api-openapi.yml