--- title: TeleDynamics Think Tank | OTT VOIP description: OTT VOIP | Business Telephone Systems Blog --- [Skip to content](https://info.teledynamics.com/blog/topic/ott-voip#main-content) [(800) 847-5629](tel:+1(800)%20847-5629) Search [Become a Dealer](https://www.teledynamics.com/become-dealer) [Log In](http://www.teledynamics.com/) - Products - [Full Product Catalog](https://www.teledynamics.com/catalog) - [VOIP and UC](https://info.teledynamics.com/blog/topic/ott-voip#tab2) - [Business Equipment](https://info.teledynamics.com/blog/topic/ott-voip#tab3) - [Consumer Electronics](https://info.teledynamics.com/blog/topic/ott-voip#tab4) - [Computer and Networking](https://info.teledynamics.com/blog/topic/ott-voip#tab5) - [Outdoor Products](https://info.teledynamics.com/blog/topic/ott-voip#tab6) - [Home and Personal Care](https://info.teledynamics.com/blog/topic/ott-voip#tab7) - [Collateral](https://www.teledynamics.com/catalog/category/VOIP_and_UC/Collateral) - [IP Phone System Accessories](https://www.teledynamics.com/catalog/category/VOIP_and_UC/IP_Phone_System_Accessories) - 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[Tweet](https://twitter.com/share) [![](https://info.teledynamics.com/hubfs/blog-images/SIP%20over%20TLS%20and%20SRTP.jpg)](https://info.teledynamics.com/blog/securing-voip-communications-with-sip-over-tls-and-srtp) Voice and video communications carry some of an organization’s most sensitive conversations, but the systems that support them are often treated as ordinary network traffic, creating security gaps that attackers may be able to exploit. Behind the scenes, signaling messages set up and control the session, while separate media streams carry the actual voice or video. If either of these components is left unprotected, attackers may be able to intercept call details, manipulate sessions, or capture media packets that were never meant to be exposed.  That is why securing real-time communications requires attention to both parts of the call path. SIP over Transport Layer Security (TLS) helps protect the signaling messages used to establish and manage the session, while Secure RTP (SRTP) helps protect the media stream that carries the actual conversation. Together, these two technologies provide an important foundation for securing VoIP, UC, and other real-time collaboration services.  In this article, we take a closer look at how SIP over Transport Layer Security (TLS) and Secure RTP (SRTP) work together to protect real-time communications. We’ll examine the difference between signaling and media traffic, what each technology helps secure, and why both are important for protecting VoIP, UC, and collaboration environments.  [Read More](https://info.teledynamics.com/blog/securing-voip-communications-with-sip-over-tls-and-srtp) 0 Comments [Click here to read/write comments](https://info.teledynamics.com/blog/securing-voip-communications-with-sip-over-tls-and-srtp#comments-listing) Topics: [OTT VOIP](https://info.teledynamics.com/blog/topic/ott-voip), [VoIP](https://info.teledynamics.com/blog/topic/voip), [SIP](https://info.teledynamics.com/blog/topic/sip), [Network Security](https://info.teledynamics.com/blog/topic/network-security), [Unified Communications](https://info.teledynamics.com/blog/topic/unified-communications), [Communication](https://info.teledynamics.com/blog/topic/communication), [UCaaS](https://info.teledynamics.com/blog/topic/ucaas), [Protocols, codecs & standards](https://info.teledynamics.com/blog/topic/protocols-codecs-standards) ## [VoIP services over satellite constellations](https://info.teledynamics.com/blog/voip-services-over-satellite-constellations) Posted by [Daniel Noworatzky](https://info.teledynamics.com/blog/author/daniel-noworatzky) on Feb 22, 2023, 10:58:00 AM - [Tweet](https://twitter.com/share) [![Satellite constellation - TeleDynamics blog](https://info.teledynamics.com/hubfs/blog-images/Satellite%20constellation%20-%20TeleDynamics%20Blog.png)](https://info.teledynamics.com/blog/voip-services-over-satellite-constellations) Anyone interested in the latest news about telecommunications has been hearing about Starlink, a satellite internet constellation currently being deployed into low earth orbit (LEO) by SpaceX. This network aims to deliver high-speed internet connectivity to any location on the planet — a particularly beneficial development for those in rural or remote areas. In this article, we examine this space-age internet service provider and evaluate its viability for services such as VoIP, video and other time-sensitive communications applications. [Read More](https://info.teledynamics.com/blog/voip-services-over-satellite-constellations) 0 Comments [Click here to read/write comments](https://info.teledynamics.com/blog/voip-services-over-satellite-constellations#comments-listing) Topics: [OTT VOIP](https://info.teledynamics.com/blog/topic/ott-voip), [Wireless](https://info.teledynamics.com/blog/topic/wireless), [VoIP](https://info.teledynamics.com/blog/topic/voip), [Trends](https://info.teledynamics.com/blog/topic/trends), [Mobile](https://info.teledynamics.com/blog/topic/mobile) ## [VoIP over cellular data networks](https://info.teledynamics.com/blog/voip-over-cellular-data-networks) Posted by [Daniel Noworatzky](https://info.teledynamics.com/blog/author/daniel-noworatzky) on Sep 23, 2020, 10:48:00 AM - [Tweet](https://twitter.com/share) [![](https://info.teledynamics.com/hubfs/blog-images/mobile-phone-at-work1200x627.jpg)](https://info.teledynamics.com/blog/voip-over-cellular-data-networks) Now that working from home and dispersed workforces have become the new norm, connecting employees’ or company-issued smartphones to the enterprise IP PBX offers several advantages, including the ability to reach employees via their direct inward dial (DID) landline numbers, even though they are physically off-premise. The technology that enables this is called VoIP over cellular data networks. In this article we detail how to enable it, the advantages of doing so and some potential issues to watch out for. [Read More](https://info.teledynamics.com/blog/voip-over-cellular-data-networks) 2 Comments [Click here to read/write comments](https://info.teledynamics.com/blog/voip-over-cellular-data-networks#comments-listing) Topics: [OTT VOIP](https://info.teledynamics.com/blog/topic/ott-voip), [IP PBX](https://info.teledynamics.com/blog/topic/ip-pbx), [Business Telephone System](https://info.teledynamics.com/blog/topic/business-telephone-system), [VoIP](https://info.teledynamics.com/blog/topic/voip), [Mobility (including remote work)](https://info.teledynamics.com/blog/topic/mobility-including-remote-work), [Mobile](https://info.teledynamics.com/blog/topic/mobile), [Wi-Fi](https://info.teledynamics.com/blog/topic/wi-fi), [Unified Communications](https://info.teledynamics.com/blog/topic/unified-communications) ## [What happened at WISPA?](https://info.teledynamics.com/blog/what-happened-at-wispa) Posted by [TeleDynamics](https://info.teledynamics.com/blog/author/teledynamics) on Oct 18, 2017, 3:53:00 PM - [Tweet](https://twitter.com/share) [![Rio-All-Suite-Hotel-LV.jpg](https://info.teledynamics.com/hubfs/event_photos/Rio-All-Suite-Hotel-LV.jpg)](https://info.teledynamics.com/blog/what-happened-at-wispa) *Key trends for WISPs from WISPAPALOOZA* Wireless Internet Service Providers or WISPs constitute a growing industry in the United States and worldwide. The [WISP Association](http://www.wispa.org/) (WISPA), an advocacy organization for WISPs in the U.S., has over 650 members and 200 vendor associations. WISPA organizes an annual event called WISPAPALOOZA for the purpose of bringing together WISPs and vendors from all over the country.  Last week, Anthony Morris and Trey Smith were speaking with people about our wireless networking and telecommunications solutions at the TeleDynamics booth. Here we cover some of the key trends this year that affect WISPs. [Read More](https://info.teledynamics.com/blog/what-happened-at-wispa) 1 Comment [Click here to read/write comments](https://info.teledynamics.com/blog/what-happened-at-wispa#comments-listing) Topics: [OTT VOIP](https://info.teledynamics.com/blog/topic/ott-voip), [Wireless](https://info.teledynamics.com/blog/topic/wireless), [Trends](https://info.teledynamics.com/blog/topic/trends), [Mobile](https://info.teledynamics.com/blog/topic/mobile), [Events](https://info.teledynamics.com/blog/topic/events), [WISP](https://info.teledynamics.com/blog/topic/wisp) ## [Complement your telecommunications experience with Skype](https://info.teledynamics.com/blog/complement-your-telecommunications-experience-with-skype) Posted by [Daniel Noworatzky](https://info.teledynamics.com/blog/author/daniel-noworatzky) on Jul 19, 2017, 3:53:00 PM - [Tweet](https://twitter.com/share) [![Skype-enabled endpoints - IP phone, analog phone, conference phone, video conferencing system, software add-on](https://info.teledynamics.com/hubfs/blog-images/Skype-endpoints3.jpg)](https://info.teledynamics.com/blog/complement-your-telecommunications-experience-with-skype) In today’s connected world, it is increasingly common to have workers in different parts of the country, or even different parts of the world, collaborating over the multiple communications channels available to them. Many remote workers use OTT services like Skype to keep in touch with their clients, partners and customers in situations where a telephone call (even over VoIP) would incur a non-trivial cost. Such calls usually require the use of a computer with a webcam and either a headset or speakers and a microphone. This makes Skype calling more complex than a simple telephone call. Skype-enabled telephony devices remove this complexity by integrating the application with the endpoint, so communicating over Skype becomes as simple as a traditional telephone call. By enabling Skype, these devices also make more features available to the user like instant messaging, [presence technology](https://info.teledynamics.com/blog/improve-worker-collaboration-through-presence-technology), and file sharing. In this article we list some productivity-boosting Skype- and Skype for Business-enabled products. [Read More](https://info.teledynamics.com/blog/complement-your-telecommunications-experience-with-skype) 1 Comment [Click here to read/write comments](https://info.teledynamics.com/blog/complement-your-telecommunications-experience-with-skype#comments-listing) Topics: [OTT VOIP](https://info.teledynamics.com/blog/topic/ott-voip), [Business Telephone System](https://info.teledynamics.com/blog/topic/business-telephone-system), [Software Integration](https://info.teledynamics.com/blog/topic/software-integration), [Conferencing](https://info.teledynamics.com/blog/topic/conferencing), [Android](https://info.teledynamics.com/blog/topic/android), [Microsoft](https://info.teledynamics.com/blog/topic/microsoft) ## [VoLTE and OTT voice applications – what’s the difference?](https://info.teledynamics.com/blog/volte-and-ott-voice-applications-whats-the-difference) Posted by [Daniel Noworatzky](https://info.teledynamics.com/blog/author/daniel-noworatzky) on Jul 5, 2017, 3:48:00 PM - [Tweet](https://twitter.com/share) [![voice-app-icons.png](https://info.teledynamics.com/hubfs/blog-images/voice-app-icons.png)](https://info.teledynamics.com/blog/volte-and-ott-voice-applications-whats-the-difference) *When to use VoLTE vs. an OTT voice app* In a previous article, we discussed [voice over LTE (VoLTE)](https://info.teledynamics.com/blog/what-volte-means-for-the-enterprise-voip-system) and its implications for the enterprise VoIP phone system. All voice traffic over the LTE (also known as 4G mobile) network is packetized and conforms to modern VoIP standards, making it the first mobile telephony standard to completely circumvent the traditional circuit-switched telephony infrastructure. In many ways, VoLTE sounds a lot like over-the-top (OTT) voice applications that leverage the same protocols for voice. In this article, we look at what OTT voice apps are, what VoLTE is in relation to OTT, and the benefits of using one, the other or both over an LTE network. [Read More](https://info.teledynamics.com/blog/volte-and-ott-voice-applications-whats-the-difference) 0 Comments [Click here to read/write comments](https://info.teledynamics.com/blog/volte-and-ott-voice-applications-whats-the-difference#comments-listing) Topics: [OTT VOIP](https://info.teledynamics.com/blog/topic/ott-voip), [Business Telephone System](https://info.teledynamics.com/blog/topic/business-telephone-system), [VoIP](https://info.teledynamics.com/blog/topic/voip), [Software Integration](https://info.teledynamics.com/blog/topic/software-integration), [Trends](https://info.teledynamics.com/blog/topic/trends), [Mobility (including remote work)](https://info.teledynamics.com/blog/topic/mobility-including-remote-work), [Mobile](https://info.teledynamics.com/blog/topic/mobile) ## [What is VoIP… really?](https://info.teledynamics.com/blog/what-is-voip-really) Posted by [Daniel Noworatzky](https://info.teledynamics.com/blog/author/daniel-noworatzky) on Apr 5, 2017, 2:51:00 PM - [Tweet](https://twitter.com/share) [![](https://info.teledynamics.com/hubfs/blog-images/construction-worker-confused_BtQyDPCSo-GraphicStock-25pct.jpg)](https://info.teledynamics.com/blog/what-is-voip-really) Last week, we touched on some of the technological advances that have allowed VoIP telephony to surpass the PSTN in both quality and reliability. Yet, even though VoIP has been around for two decades, there are still some misconceptions about what it really is. A lot of people think of VoIP as a technology that allows placing phone calls over the internet. Although this is true, such a narrow definition encompasses only a fraction of the functionality of VoIP. The unfortunate consequence of this misperception is that VoIP is often associated with low quality and best-effort services that offer low cost or free voice calls over the internet. Those familiar with these services have experienced the frequent disconnects, jitter and stuttering on the line characteristic of this type of service. As a result, VoIP has erroneously been associated with an unreliable user experience. The truth is, VoIP is much more (and better) than just voice over the internet. [Read More](https://info.teledynamics.com/blog/what-is-voip-really) 0 Comments [Click here to read/write comments](https://info.teledynamics.com/blog/what-is-voip-really#comments-listing) Topics: [OTT VOIP](https://info.teledynamics.com/blog/topic/ott-voip), [QoS](https://info.teledynamics.com/blog/topic/qos), [Business Telephone System](https://info.teledynamics.com/blog/topic/business-telephone-system), [VoIP](https://info.teledynamics.com/blog/topic/voip), [SIP](https://info.teledynamics.com/blog/topic/sip), [Mobile](https://info.teledynamics.com/blog/topic/mobile) ## [Sizzling trends in business telephony](https://info.teledynamics.com/blog/sizzling-trends-in-business-telephony) Posted by [Daniel Noworatzky](https://info.teledynamics.com/blog/author/daniel-noworatzky) on Apr 13, 2016, 3:40:00 PM - [Tweet](https://twitter.com/share) [![](https://info.teledynamics.com/hubfs/man-w-tablet-voip-phone-332301.jpg)](https://info.teledynamics.com/blog/sizzling-trends-in-business-telephony)   *These four innovations are taking business communications by storm.* [Read More](https://info.teledynamics.com/blog/sizzling-trends-in-business-telephony) 2 Comments [Click here to read/write comments](https://info.teledynamics.com/blog/sizzling-trends-in-business-telephony#comments-listing) Topics: [OTT VOIP](https://info.teledynamics.com/blog/topic/ott-voip), [VoWi-Fi](https://info.teledynamics.com/blog/topic/vowi-fi), [Business Telephone System](https://info.teledynamics.com/blog/topic/business-telephone-system), [VoIP](https://info.teledynamics.com/blog/topic/voip), [Trends](https://info.teledynamics.com/blog/topic/trends), [Mobility (including remote work)](https://info.teledynamics.com/blog/topic/mobility-including-remote-work) [All posts](https://info.teledynamics.com/blog/all) ## Welcome to our Think Tank In this blog you'll read our thoughts on business telephone systems. While a lot has changed in telecom since TeleDynamics was founded in 1981, we remain as committed as ever to delivering the best customer service in the industry. If you would like elaboration on a specific topic, please let us know in the comments section. 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