This will place a call to the given to phone number, with a caller ID corresponding to the given fonenumber. When the call connects, the API returns with the call ID, and the destination identified by service_id will be connected.

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US and International Dialing
• All non-numeric characters in a phone number are ignored; a value like "(321) 499-1008" will be interpreted as 3214991008.
• When calling a number within the United States, use 1+10 digits: 13214991000
• For international dialing: 011+(country code)+digits: 01149894567898
In this example, '49' is the country code for Germany)

Notes

`to`

A valid phone number (7 to 15 digits long) or a configured Speed Dial (1 to 6 digits long).

`service_type`

The to parameter contains the corresponding setting for the destination.

Type	Value	Example	Note
Device	The ID for the destination device	`987123543678`	Use the Get Devices endpoint to get the desired device ID.
VoiceMail	The ID for the destination VoiceMail	`VM7878452661`	Use the Get Voicemails endpoint to get the desired voicemail ID.
SoundFile	A valid URL	`https://www.example.com/file.wav`	URL for sound file to play. See below for more information.
TTS	Text String	`Hello, this is a test call`	Text-to-speech. See below for more information.
Phonenumber	Telephone number	`3215551111`	Valid 7 to 15 digit telephone number

TTS: Text-to-speech supports the Speech Synthesis Markup Language (SSML) for improved control over how the text is read. Official documentation is provided at the W3C SSML page.

SoundFile: Currently, only WAV files accessible by the given URL are supported. Support for uploaded files and other formats is coming soon.

`service_id`

Calls can be connected to one of several destination types: a configured and registered Device (e.g. SIP handset, Fractelfone mobile app, or WebRTC endpoint), a configured VoiceMail box, a SoundFile URL, or to another PhoneNumber. There is also an option to set the destination type to TTS (text-to-speech), in which the message specified by the to field is read out via speech synthesis. Use the type parameter to specify the type of call that needs to be made.

Response Properties

Property	Type	Description
call	object	Call object.

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Making calls may result in additional charges and fees to your account.

201Sent

400Bad Request

401Unauthorized

404Not Found

defaultError