There are 2 repositories under pstn topic.
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。
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
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
PSTN / VoIP Configuration for Asterisk, HT-503, and Raspberry Pi
Validate a Callback Request event from Sinch Verification using Laravel
Add a PSTN user to a Webex meeting when using the Browser Widget.
A repository for the PBX (Private Branch eXchange) project on Linux
Handle an incoming call to your Sinch rented number using Laravel
Assign a custom 7 digit PIN to a PMR which can be dialed via Webex Connect
A "Trade Floor" application that can receive PSTN calls (Webex Connect) with custom IVR, and direct the caller to a Webex Meeting (by way of Webex Calling). Can also receive SIP calls from devices using a static dial string and direct them to the Webex Meeting as well.