网关服务：Sip与Rtc互通，实现Web，Android，iOS，小程序，SIP座机，PSTN电话，手机互通。

智能呼叫中心系统 freeswitch esl sip webrtc

Top geek's chindogu - personal assistant over satellite/telephone/SMS/chatbot, plus web infrastructure servers (web & mail, ad-free DNS, TCP-over-DNS, web proxy, etc)

How I replaced Skype with Twilio to make phone calls from my computer

☎️ A Matrix Puppet bridge for the public telephone network that supports a number of VoIP providers (Twillo, Vonage, etc.). Sends and receives voice and SMS.

Skype for Business/Lync PSTN gateway

Code samples to Get started quickly with Symbl's Voice SDK and APIs: Node.js, JavaScript, WebSockets, & PSTN.

A sample app for enabling you to invite Symbl to your Zoom meetings by doing nothing more than simply copy and pasting the meeting invite in the app.

Make test calls to our PSTN phone numbers and SIP/VOIP addresses

DTMF signals, Fourier transform

Python "Modem over IP" for Minitel

Microsoft Teams SIP PSTN gateway using Drachtio

The Cryptofon Project aims to design a universal narrowband voice and text / data narrowband communication standard, that is encrypted and flexible to adapt for existing narrowband communication systems - aimed to be a more secure and open alternative to the propietary Secure Communications Interoperability Protocol (SCIP)

Libary with Simple Temporal Networks (STN) for representing robot tasks

A .net core console application to compare total pstn call minutes to calling plan limits

🤖 Rox AI is a tool that connects Fonoster with Dialogflow ES/CX

腾讯 pstn 接口 支持 pstn 回拨和小号直拨

"websh" is now "laitos", see README.md

An E.164 analyzer and validator written in Haskell

PSTN / VoIP Configuration for Asterisk, HT-503, and Raspberry Pi