Amazon Chime SDK PSTN Audio

Spec sheet

Purpose

Amazon Chime SDK lets developers embed real-time communication capabilities in their applications.Read 3 Oct 2026 · aws.amazon.com

Integrations

Call analytics offers pre-built integrations with Amazon Transcribe and Amazon Transcribe Call Analytics for real-time voice analytics and transcriptions.Read 3 Oct 2026 · aws.amazon.com

Security

For SIP trunking, Amazon Chime Voice Connector supports TLS encryption for SIP signaling, SRTP encryption for media streams, and optional SIP digest authentication for outbound calls.Read 3 Oct 2026 · aws.amazon.com

Company history

Amazon Web Services says it launched in 2006.Read 3 Oct 2026 · aws.amazon.com

Inbound routing

Voice applications can use DID/DDI or toll-free numbers to route calls to a Chime SDK meeting, an on-premises phone system, or another phone number.Read 3 Oct 2026 · aws.amazon.com

Phone numbers

Customers can create or port dial-in numbers, use toll-free and toll numbers, or bring their own carrier and phone numbers through Amazon Chime Voice Connector SIP trunking.Read 3 Oct 2026 · aws.amazon.com

Platform support

The SDK client libraries support JavaScript, iOS, Android, and Windows, and enable audio and video in WebRTC-enabled browsers and mobile operating systems.Read 3 Oct 2026 · aws.amazon.com

Pricing increments

PSTN Audio Application Usage is billed in 6-second increments at one tenth of the per-minute rate, with a 6-second minimum.Read 3 Oct 2026 · aws.amazon.com

PSTN calling

PSTN Audio lets meeting attendees join by landline or mobile phone, and supports outbound calls to over 100 countries.Read 3 Oct 2026 · aws.amazon.com

Recording

PSTN Audio calls can be recorded to an Amazon S3 bucket chosen by the customer.Read 3 Oct 2026 · aws.amazon.com

Reliability

Amazon Chime Voice Connector supports fault-tolerant cross-region inbound and outbound call routing between a phone system and AWS.Read 3 Oct 2026 · aws.amazon.com

Serverless applications

AWS Lambda can be used to build meeting-join authentication for voice applications that scale to thousands of simultaneous calls.Read 3 Oct 2026 · aws.amazon.com

Use cases

AWS identifies SIP trunking for routing phone calls to multiple office locations as a Chime SDK use case.Read 3 Oct 2026 · aws.amazon.com

Voice Focus

Builders can choose to enable or disable Amazon Voice Focus noise suppression for PSTN calls, centrally or through end-user controls.Read 3 Oct 2026 · aws.amazon.com

Plans and prices

Every Amazon Chime SDK PSTN Audio plan and price →

Where Specifiction places it

• Voice APIs#12 of 527.8
• Communication Platform as a Service (cPaaS) Platforms#10 of 267.7
• Video Communications Software#10 of 247.8
• Video APIs#24 of 357.8