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Which API Is Appropriate For Me?

A comparison of the UAS and REST APIs for voice and fax telephony.

Cloud Regions

An explanation of cloud regions and how they relate to your account.

How To Start Applications

How to start an outbound application and how inbound applications are started by Aculab Cloud when an inbound call is received.

Outbound and Inbound Services

Describes inbound and outbound services and how they relate to inbound and outbound calls and SMS messages.

Calls Per Second

Managing the number of outbound services that Aculab Cloud will start every second.

Outbound Calls

Placing outbound calls, outbound telephony providers, dialed numbers, caller IDs and Live Speaker Detection.

Protocols and Formats

Voice and fax call codecs and media file formats.

Media File Availability

How quickly media files can be accessed on the media file store after recording, uploading and renaming.


How to use Aculab Cloud's text-to-speech engine to add speech to your applications.

Speech Recognition

How to use Aculab Cloud's speech recognition to recognise spoken words and phrases in your applications.

Voice Biometrics

How to use Aculab Cloud's voice biometrics to verify users from their voice in your applications.

SMS Messaging

Sending and receiving SMS messages.

Sending and Receiving Faxes

How to send and receive faxes and the settings and fax formats supported.


How to connect calls together in a conference.

Using Encrypted Media Files

Using encryption to secure your media files.

HIPAA and Privacy

An overview of HIPAA regulation and privacy in relation to Aculab Cloud.

GDPR and Data Protection

A summary of how GDPR and data protection applies to data on Aculab Cloud.


An overview of authentication used to protect your information.