VoIP on LTE-M IoT Devices with Twilio and Sony
2-way voice capability doesn’t have to be resource intensive, if done right. Twilio and Sony have partnered to deliver all ingredients necessary for offering VoIP over low-power, low-bandwidth Cat-M connectivity.
VoIP on LTE-M IoT Devices with Twilio and Sony
2-way voice capability doesn’t have to be resource intensive, if done right. Twilio and Sony have partnered to deliver all ingredients necessary for offering VoIP over low-power, low-bandwidth Cat-M connectivity.
Overview
Voice is still the preferred choice for people who want to communicate, and millions of developers already know how Twilio gives them the power to add voice communications to their products with just a few lines of code. Sony Semiconductor and Twilio have partnered to deliver voice capability to small-footprint, low-power, and low bandwidth IoT devices, such as alarm panels, access control systems, trackers, child & adult wearables, fitness & patient monitoring devices, smart metering, and many other IoT applications. This new capability means simplified design and reduced cost for portable, low-power IoT devices with global voice functionality.
What it takes
Embed the Sony ALT1250 chipset into your small-form-factor device equipped with microphone & speaker
Leverage Twilio Programmable Voice and SIP for low-bandwidth VoIP/SIP and PSTN breakout capability
Get access to the AMR-NB codec (Adaptive Multi-Rate Narrowband), an audio compression format optimized for speech coding, for embedding narrowband VoIP in your application.
- Utilize Twilio Super SIM to get access to global Cat-M networks that support low-bandwidth and low-power devices
Sony ALT1250
Designed for cellular IoT applications from the ground up, the Sony ALT1250 chipset drives devices which prioritize battery life, security, and small size, ensuring compliant and reliable network connectivity. This full-solution, 5G-ready, Dual-Mode LTE-M & NB-IoT chipset with 2G fallback is built to evolve along with the IoT service and cellular network that Twilio offers. Built-in security features ensure a reliable IoT service throughout your device’s lifetime.
Twilio Programmable Voice
Twilio SIP Interface functionality allows you to augment your VoIP Infrastructure using cloud-based capabilities, supporting multi-site installations, BYOC, and more. To support voice on low-power, low-bandwidth cellular networks, Twilio has added support for the AMR-NB codec; it is now feasible to use SIP solutions over Sony ALT1250-based cellular LTE-M devices, without the need for Voice over LTE (VoLTE). AMR-NB allows for a low-bandwidth media stream, which is effective for use with low-power devices on cellular networks, such as the ALT1250.
Twilio Super SIM
Twilio Super SIM brings the world’s best cellular networks together into a single experience. With one multi-IMSI SIM, you get comprehensive global coverage and granular control over your device connectivity on the leading API-powered cellular connectivity platform. Accelerate your time to value with self-service SIM ordering, fast fulfillment, free resources, and access to IoT experts.
