T-Cell US, Inc. makes use of synthetic intelligence by means of Amazon Transcribe and Amazon Translate to ship voicemail within the language of their clients’ selection

This put up is co-authored by Dhurjati Brahma, Senior Techniques Architect at T-Cell US, Inc and Jim Chao, Principal Engineer/Architect at T-Cell US, Inc and Nicholas Zellerhoff Affiliate Techniques Architect at T-Cell US, Inc.

T-Cell US, Inc. supplies a Voicemail to Textual content service to its clients, which permits clients to shortly learn by means of their voicemails and reply to and handle messages in any order with out having to dial into their voicemailbox. This service is delivered by the T-Cell Voicemail system and makes use of Amazon Transcribe to transform voicemail messages to textual content. In 2023, T-Cell launched the Voicemail to Textual content Translate function. Powered by Amazon Translate, this function lets clients request voicemail transcriptions of their language of selection from the native Visible Voicemail utility obtainable on main Android producers’ units, starting with flagship units and all future units obtainable from main gadget companions.

Voicemail settings Voicemail translation options Visual voicemail

The historical past

Two years in the past, in 2021, T-Cell engineering groups partnered with AWS to launch a brand new AI-powered function referred to as Voicemail to Textual content with automated language detection and to enhance high quality and efficiency for purchasers. Voicemail to Textual content offered clients with the extra good thing about receiving voicemail transcriptions at no additional price. Voicemail to Textual content is obtainable in 39 completely different spoken languages and dialects and makes use of auto-language detection offered by Amazon Transcribe. These languages included English and Spanish, in addition to many European, Center Japanese, Asian, and African languages. The total listing of supported languages may be present in Amazon Transcribe documentation. Since its introduction, the utilization of Voicemail to Textual content service has grown and it transcribes 126 million voicemail messages per thirty days as of July 2023. T-Cell has partnered with AWS to research the important thing utility metrics of this service, corresponding to language distribution, the variety of messages per language, the each day whole and distinctive energetic clients, and so forth. This information helped in scaling the service and making key enterprise selections to enhance the Voicemail to Textual content buyer expertise.

The problem

Upon evaluation of the weekly language distribution of voicemail transcriptions, T-Cell noticed that roughly 10 % of voicemail transcriptions had been acquired in a language aside from US English, with Spanish being the predominant language.

Weekly language distribution for all languages

Weekly language distribution excluding US English and US Spanish

As well as, market analysis primarily based on U.S. Census Bureau information confirmed that roughly 22 % of the US inhabitants spoke a language aside from English. This confirmed a necessity for a Voicemail to Textual content translation function that would bridge this language hole and drove T-Cell and AWS groups to brainstorm an answer. The thought was to offer T-Cell’s Voicemail to Textual content clients an choice to obtain voicemail transcriptions within the language of their selection delivered by means of SMS, electronic mail, or by means of the Visible Voicemail (VVM) utility.

The answer

T-Cell determined to make use of Amazon Translate, a neural machine translation (MT) service to reinforce their present Voicemail to Textual content service with real-time textual content translation between supported languages as a result of Amazon Translate offered the high-quality translation providers required within the business. T-Cell already had their voicemail system linked to AWS by means of a personal AWS Direct Connect hyperlink and was utilizing the Amazon Transcribe API to get transcriptions. Following the identical design sample, T-Cell added an integration with the Amazon Translate API to translate voicemail transcripts from the supply language detected by Amazon Transcribe to the purchasers’ most well-liked language.

Here’s a high-level structure diagram that illustrates the T-Cell Voicemail to Textual content Translate answer.

Scope of solution

From a buyer perspective, to allow the Visible Voicemail Translate function, a buyer wants a Voicemail to Textual content function service operator code (SOC) enabled on their cellular plan and will have one of many supported main Android producer units with the Translate function API enabled. The client can then go to the Visible Voicemail settings web page to pick out a language from a listing of 75 different languages and dialects supported by Amazon Translate. It will allow clients to obtain voicemail transcription within the supported language of their selection.

The outcomes

With Amazon Translate, T-Cell was capable of ship a pleasant new buyer expertise that accommodates the language desire of its clients and makes voicemail extra accessible to individuals who converse numerous languages. This new functionality helps to interrupt language limitations by making it simpler for audio system of various languages to speak.


By utilizing Amazon Transcribe and Amazon Translate language AI providers, T-Cell was capable of improve its voicemail service by delivering message transcriptions in a language that clients can perceive. By selecting to make use of AWS managed AI providers, T-Cell was capable of expedite the supply of this new buyer expertise and keep away from operational burdens of sustaining further servers and software program of their information facilities. With Amazon Transcribe and Amazon Translate, Voicemail to Textual content and Voicemail to Textual content Translate providers are delivered with low latency and excessive accuracy.

For extra info, try Getting started with Amazon Translate and Getting started with Amazon Transcribe to discover how you should use these providers along with your functions. Comply with the Artificial Intelligence category on AWS Machine Learning Blog to remain updated with new capabilities and use instances for numerous AWS AI providers.

In regards to the Authors

Dhurjati Brahma is a Senior Techniques Architect at T-Cell US, Inc. He has over 15+ years of expertise in designing, constructing, and managing sturdy and scalable virtualized messaging options inside T-Cell’s community. He’s passionate to collaborate with numerous cross-functional groups and distributors to securely combine T-Cell’s messaging methods with public cloud to launch thrilling new services and products for T-Cell’s clients. He holds a Grasp’s diploma in Electrical Engineering from College of Alabama at Birmingham. Outdoors of labor, he enjoys occurring hikes, listening to classical music, working towards meditation, and spending time together with his household and associates.

Jim Chao is the Principal Engineer/Architect at Core Messaging Service Design at T-Cell US, Inc. He has greater than 20 years of expertise in design and structure of cellular messaging service methods and platforms. Currently, he has been dedicating his time to the following technology of messaging service utilizing machine studying and generative AI. He holds a Grasp’s diploma of Laptop Data Techniques. Outdoors the work he spends time with household and does loads of bible study and follow in addition to touring to the spiritual locations above 5000 meters within the mountains of Tibet.

Nicholas Zellerhoff is an Affiliate Techniques Architect for T-Cell as a part of the Service Know-how Improvement crew functioning as lead growth engineer for Native Visible Voicemail providers. When not in workplace, Nick enjoys every thing outside, from yard BBQs with associates to backcountry climbing within the North Cascades.

Alex Bulatkin is a options architect at AWS. He enjoys serving to communication service suppliers construct progressive options in AWS which might be redefining the telecom business. He’s captivated with working with clients on bringing the facility of AWS AI providers into their functions. Alex is predicated within the Denver metropolitan space and likes to hike, ski, and snowboard.

Prabhakaran Balasubramaniam is a Principal Buyer Options Supervisor at AWS. He loves to assist telecom clients leverage new applied sciences to unravel their issues. Prabhakaran is predicated within the Dallas-Fort Price space and likes sports activities.

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