The SIP School

02/02/2026

Flash Sale! @ The SIP School... 25% off but be quick! - https://mailchi.mp/thesipschool.com/flash-sale-the-sip-school-6225433

26/11/2025

Black Friday SALE - Last chance for the Code...... - https://mailchi.mp/thesipschool.com/black-friday-sale-2020-1-day-only-6224796

19/10/2025

Last chance for 15% off...!!! - https://mailchi.mp/thesipschool.com/flash-sale-the-sip-school-6224795

14/07/2025

We have a WebRTC offer for you

WebRTC enables voice and video communications in web browsers. Assuming you want your SIP calls to be delivered to a web browser, then you need to use WebRTC for that.

24/06/2025

The countdown is on! 2025 INCOMPAS Show registration is officially OPEN! Get unmatched networking with top communications & tech leaders. - https://mailchi.mp/thesipschool.com/apply-for-the-2020-msp-501nextgen-101-by-may-15-and-enter-to-win-one-of-five-early-6223935

11/04/2025

25 Years of Vocale (Home of The SIP School) - and a 25% offer

19/03/2025

Inside the Black Box... The Story of Telecommunications - Partner Video ☎️ - https://mailchi.mp/thesipschool.com/inside-the-black-box-the-story-of-telecommunications-partner-video

16/03/2025

Webinar: Branded Calling—A New Business Opportunity -

TransNexus presents an educational webinar... Branded Calling - A New Business Opportunity, hosted by the Competitive Carriers Association, on Wednesday, March 19, 2025, at 1:00 p.m. ET.

09/02/2025

Vocale on VoIP - February edition - https://mailchi.mp/thesipschool.com/vocale-on-voip-august-edition-6223015

16/12/2024

15% off for the Holidays.... - https://mailchi.mp/thesipschool.com/15-off-for-the-holidays-6222732

26/11/2024

Black Friday SALE - Last chance for the Code...... - https://mailchi.mp/thesipschool.com/black-friday-sale-2020-1-day-only-6222683

17/11/2024

Black Friday SALE 2024 - From now until December! - https://mailchi.mp/thesipschool.com/black-friday-sale-2020-1-day-only-6222597