This method uses built-in hardware voice synthesis. The method is fast but only supports the English language.
Wake-up Calls & Text-to-Speech Calls
SMSEagle’s Voice (Calls) feature offers Wake-Up Calls for urgent ring-only alerts, Text-To-Speech Automated Calls to convert text messages into voice calls, and Audio File Calls for personalized message to groups or individuals.
Feature Details
The Calls feature allows different types of calls to be made, covering a wide range of scenarios. This feature is ideal for delivering urgent messages or announcements such as alerts, emergency notifications, or other time-sensitive information. A call request can be created via the SMSEagle web-GUI or API.
1. Wake Up Calls (Ring only)
Wake up call is a ring-only call that can be used to capture a recipient’s attention. This feature allows for example to wake up someone during the night to draw attention to SMS containing a critical alert. When a wake up call is made SMSEagle device will ring to a specified phone number or phonebook entry for a specified number of seconds.
2. Text-To-Speech (TTS) Automated Calls
Text-To-Speech call allows converting of text message to voice call. This feature is particularly useful for businesses or organizations that must deliver important messages via voice. When a TTS call is made SMSEagle device will call a specified phone number or phonebook contact/group.
There are 2 modes of text-to-speech function:
Text-To-Speech Simple
Text-To-Speech Advanced
The Advanced TTS method supports multiple languages and provides high-quality generated voice. The method uses built-in software synthesis but can be slower for longer texts.
Text to Speech Advanced feature has 2 pre-uploaded language models: English and German. You can upload additional voice models via the Calls > TTS voice models menu. The voice model library currently contains 36 languages and multiple voices for some of the languages.
3. Audio File Calls
The Audio File Call feature allows you to make voice calls using recorded audio (wave) files. This feature is ideal for those who prefer a personal touch for customized announcements or specific alerts. You can upload a pre-defined file in the Calls > Audio files menu. The file must meet the following requirements: Wave file format, 8 kHz or 16 kHz, mono, 16-bit PCM.
New Call Settings
When creating a call via web-GUI, in a new call window you can set:
- Call recipient: can be manually inserted phone number, Contact or group from Phonebook
- Select a modem to call from (when using a multi-modem device)
- Set call priority from 0-5
- Select call type, Ring only, Text-to-speech Simple, Text-to-Speech Advanced
- Input message when Text to speech call type is selected
- Select a voice model for Text-to-Speech Advanced
- Upload audio (wave) file or choose from pre-uploaded list when Audio Calls type is selected
Important notice:
Wake-up Calls and Text to Speech Calls functions are only available to users who have purchased the VOICE add-on for their SMSEagle device. Due to technical limitations, the Text to Speech (TTS) function is only available on NXS hardware Rev. 4 and MHD-8100-4G devices.
