Authorizations
API key
Body
application/json
⚠️ SIP Billing Starts October 27, 2025 - See Ultravox Pricing for details.
Overview
Accounts
Agents
Calls, Messages, Stages
- Calls Overview
- GETList Calls
- GETGet Call
- POSTCreate Call
- DELDelete Call
- GETList Call Messages
- GETList Call Tools
- GETGet Call Recording
- GETList Call Stages
- GETGet Call Stage
- GETList Call Stage Messages
- GETList Call Stage Tools
- GETGet Call Stage Message Audio
- GETList Deleted Calls
- GETGet Deleted Call
- GETList Call Events
- POSTSend Data Message to Call
Corpora, Query, Sources
- Corpus Service (RAG) Overview
- GETList Corpora
- POSTCreate Corpus
- GETGet Corpus
- PATCHUpdate Corpus
- DELDelete Corpus
- POSTQuery Corpus
- GETList Corpus Sources
- POSTCreate Corpus Source
- GETGet Corpus Source
- PATCHUpdate Corpus Source
- DELDelete Corpus Source
- GETList Corpus Source Documents
- GETGet Corpus Source Document
- POSTCreate Corpus File Upload
Tools
Voices
Webhooks
SIP Configuration
⚠️ SIP Billing Starts October 27, 2025 - See Ultravox Pricing for details.
SIP Configuration
Create SIP Registration
Creates a new SIP registration using the given properties
POST
/
api
/
sip
/
registrations
cURL
Copy
Ask AI
curl --request POST \
--url https://api.ultravox.ai/api/sip/registrations \
--header 'Content-Type: application/json' \
--header 'X-API-Key: <api-key>' \
--data '{
"username": "<string>",
"password": "<string>",
"proxy": "<string>"
}'Copy
Ask AI
{
"registrationId": "<string>",
"created": "2023-11-07T05:31:56Z",
"username": "<string>",
"proxy": "<string>"
}⌘I
cURL
Copy
Ask AI
curl --request POST \
--url https://api.ultravox.ai/api/sip/registrations \
--header 'Content-Type: application/json' \
--header 'X-API-Key: <api-key>' \
--data '{
"username": "<string>",
"password": "<string>",
"proxy": "<string>"
}'Copy
Ask AI
{
"registrationId": "<string>",
"created": "2023-11-07T05:31:56Z",
"username": "<string>",
"proxy": "<string>"
}