Voicemail Transcription


Uses API services to transcribe voicemails into text to be used in the app-sms and the voicemail to email options. Bing’s Speech API or other generic APIs can be used.

IBM Watson API

Sign up and language information is located on IBM Watson’s Site

Warning

We cannot use mod_shout to record Voicemails because the transcription service needs an uncompressed version of the audio. Therefore we will record in WAV and then use LAME to re-encode in MP3. This could cause added resource utilization to your system.

Goto Advanced > Default Settings. Add the following entries

NOTE: Watson URL used for testing was the following: https://example.url.api.us-south.speech-to-text.watson.cloud.ibm.com/instances/{GUID}/v1/recognize?model=en-US_Telephony&smart_formatting=true

List of available IBM Watson speech to text models https://cloud.ibm.com/docs/speech-to-text?topic=speech-to-text-models

Click “Reload” at the top of the page.

Goto Status > Sip Status.

Click “Flush Cache”, “Reload XML” and “Rescan”.

If you entered your key’s correctly, you should now start getting transcriptions delivered in your voicemail to email and you will also see them on the Messages page.

Azure API

Goto Advanced > Default Settings. Add the following entries

Category

Subcategory

Type

Value

Enabled

voicemail

transcribe_provider

text

azure

True

voicemail

azure_key

text

{ your azure key }

True

voicemail

azure_server_region

text

{ your server region }

True

voicemail

transcribe_language

text

en-US

True

voicemail

transcribe_enabled

boolean

true

True

voicemail

json_enabled

boolean

true

True

Click “Reload” at the top of the page.

Goto Status > Sip Status.

Click “Flush Cache”, “Reload XML” and “Rescan”.

If you entered your key’s correctly, you should now start getting transcriptions delivered in your voicemail to email and you will also see them on the Messages page.

Google API

Goto Advanced > Default Settings. Add the following entries

Category

Subcategory

Type

Value

Enabled

voicemail

transcribe_provider

text

google

True

voicemail

google_key

text

{ your google key }

True

voicemail

google_url

text

{ your google url }

True

voicemail

transcribe_language

text

en-US

True

voicemail

transcribe_enabled

boolean

true

True

voicemail

json_enabled

boolean

true

True

Click “Reload” at the top of the page.

Goto Status > Sip Status.

Click “Flush Cache”, “Reload XML” and “Rescan”.

If you entered your key’s correctly, you should now start getting transcriptions delivered in your voicemail to email and you will also see them on the Messages page.

Bing API

Recommend using Azure as an alternative to Bing.

Sign up and language information is located on Microsoft Site Note: The Bing Speech API is deprecated as of October 2018, this works for now but needs to be ported to the new API

Warning

We cannot use mod_shout to record Voicemails because the transcription service needs an uncompressed version of the audio. Therefore we will record in WAV and then use LAME to re-encode in MP3. This could cause added resource utilization to your system.

Goto Advanced > Default Settings. Add the following entries

Category

Subcategory

Type

Value

Enabled

voicemail

transcribe_provider

text

microsoft

True

voicemail

microsoft_key1

text

{your microsoft key #1}

True

voicemail

microsoft_key2

text

{your microsoft key #2}

True

voicemail

transcribe_language

text

en-US

True

voicemail

transcribe_enabled

boolean

true

True

Click “Reload” at the top of the page.

Goto Status > Sip Status.

Click “Flush Cache”, “Reload XML” and “Rescan”.

If you entered your key’s correctly, you should now start getting transcriptions delivered in your voicemail to email and you will also see them on the Messages page.

Custom API

Currently does not work with the FusionPBX email_queue.

API info from the Speech to Text provider of your choice is needed, or you can self host a transcription engine like Mozilla DeepSpeech or Kaldi ASR

Goto Advanced > Default Settings. Add the following entries

Category

Subcategory

Type

Value

Enabled

Required?

voicemail

transcribe_provider

text

custom

True

voicemail

transcription_server

text

https://yourserver

True

voicemail

json_enabled

boolean

true

True

Optional

voicemail

api_key

text

your_api_key

True

Optional

voicemail

transcribe_language

text

en-US

True

voicemail

transcribe_enabled

boolean

true

True

Click “Reload” at the top of the page.

Goto Status > Sip Status.

Click “Flush Cache”, “Reload XML” and “Rescan”.

If you entered your key’s correctly, you should now start getting transcriptions delivered in your voicemail to email and you will also see them on the Messages page.