# More Information - Links to Relevant Pages ## Relevent Web Pages * [Conversational Voice Bots using Lex](https://aws.amazon.com/blogs/machine-learning/enable-conversational-chatbots-for-telephony-using-amazon-lex-and-the-amazon-chime-sdk) * [Live Call Analytics](https://aws.amazon.com/blogs/machine-learning/live-call-analytics-for-your-contact-center-with-amazon-language-ai-services/) * [Amazon Voice Focus](https://aws.amazon.com/blogs/business-productivity/using-amazon-voice-focus-ami-to-reduce-noise-in-audio/) * [Amazon Voice Focus on the PSTN](https://aws.amazon.com/blogs/business-productivity/background-noise-suppression-on-the-pstn-using-the-amazon-chime-sdk/) * [Amazon Voice Focus as an AMI](https://aws.amazon.com/about-aws/whats-new/2021/11/amazon-voice-focus-machine-image/) ## Workshop Example Code * [PSTN Audio Examples](https://github.com/aws-samples/amazon-chime-sdk-pstn-audio-workshop) ## Explanations * [Programming Model](https://github.com/aws-samples/amazon-chime-sdk-pstn-audio-workshop/tree/main/docs/how-it-works) * [Amazon Voice Focus](https://github.com/aws-samples/amazon-chime-sdk-pstn-audio-workshop/blob/main/lambdas/call-and-bridge/README.md) * [Lex Bot Integration](https://github.com/aws-samples/amazon-chime-sdk-pstn-audio-workshop/blob/main/lambdas/call-lex-bot/README.md)