AI features in the Yeastar PBX: value or just buzz?

In July 2025, Yeastar integrated artificial intelligence capabilities into the P‑PBX series, offering voicemail transcription, call transcription and summaries, text-to-speech, and audio streaming via WebSocket. Amid widespread enthusiasm, we wanted to find out whether these innovations deliver real benefits or are just hype. We therefore conducted a “blind” test with six colleagues in different roles to measure the impact of these features in everyday work scenarios.

First impressions: caution and pragmatism

Before the test, participants shared their expectations: routing automation, audio-to-text conversion, accuracy, and ease of use. Some were skeptical about reliability and concerned that it might add complexity. This feedback served as a baseline for assessing the actual experience.

Test: three everyday use cases

We designed three typical office situations to evaluate the AI features: voicemail transcription, call transcription and summaries, and multilingual text-to-speech. Participants tested each scenario to assess accuracy, speed, and usefulness.

Voicemail transcription

Users found transcription fast, with accuracy above 95 % even for slightly unclear recordings. The ability to edit the text directly made it easier to organize messages. However, they suggested removing filler words, highlighting key points, or generating an automatic summary.

Call transcription and summaries

This feature was praised as a major productivity boost: participants no longer need to take notes during calls because the transcript and summary are generated in real time. Speaker-based transcription makes it easy to find key information. Feedback indicated a need for CRM integration and support for meetings with multiple participants.

Text-to-Speech

Text-to-speech made it possible to create multilingual announcements quickly, with realistic voices and the option to choose the target language. Users appreciated the consistency and quality of the voices, although some preferred more natural-sounding options for customer interactions.

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In September 2025, Yeastar integrated artificial intelligence capabilities into the P‑Series PBX, ranging from voicemail transcription to multilingual text-to-speech, as well as audio streaming via WebSocket. To measure the real-world impact, six users in various roles tested these features in everyday scenarios. The result? A notable improvement in efficiency and decision-making, along with concrete ideas for further development.

First impressions: caution and pragmatism

Before the test, participants expressed moderate expectations, mainly wondering whether AI could be accurate and easy to use. Some were concerned about unnecessary complexity, while others focused on transcription accuracy.

Voicemail transcription

The feature delivered over 95 % accuracy within seconds, even with slightly unclear audio. Users appreciated being able to edit the text directly, but suggested removing hesitation words and generating summaries.

Call transcription and summary

Feedback was very positive: participants could focus on the conversation while the system created a transcript and detailed summary. The ability to track speakers was praised, and integrating this data into a CRM emerged as a next step.

Multilingual text-to-speech

Instantly generating voice messages in several languages was a considerable time-saver. However, users asked for more male voices and a wider range of options to suit different audiences.

WebSocket for audio streaming

This new feature opens the door to integrating third-party AI platforms for speech analysis or voice security, expanding call management capabilities.

Conclusion and outlook

The tests show that AI already delivers tangible value by simplifying transcription and note-taking, while paving the way for deeper integrations and a richer user experience.