Birmingham, West Midlands, United Kingdom Hybrid / WFH Options
Hays
must have the following skills & experience: Extensive experience with enterprise VOIP and Unified Communications platforms (Cisco Call Manager, SIP, Cloud Voice). In-depth knowledge of SIP, ISDN, PSTN, RTP/SRTP, and voice gateway technologies. Strong understanding of QoS, DHCP, DNS, and network dependencies impacting voice quality. Proven track record of migrating from legacy voice systems to modern SIP More ❯
a self-motivated, and experienced VoIP and C++ Development Engineer.This is a hands-on execution role, working on the core telephony stack involving signalling, media processing, SIP call routing, RTP relaying, WebRTC and failover mechanisms. The opportunity is ideal for engineers with a passion for building, debugging, and optimizing real-time communication systems, with extensive knowledge and background … hours. Produce and maintain detailed project, policy, and procedural documentation. Skills & Experience: 5+ years of experience building and operating VoIP systems using communications protocols such as UDP, SIP and RTP Strong hands-on with Softswitch, OpenSIPs, RTPEngine. Solid expertise with SIP signalling, RTP, and media relay techniques. Hands-on experience with Session Border Controller, Media Servers and WebRTC. Experience in More ❯
a self-motivated, and experienced VoIP and C++ Development Engineer.This is a hands-on execution role, working on the core telephony stack involving signalling, media processing, SIP call routing, RTP relaying, WebRTC and failover mechanisms. The opportunity is ideal for engineers with a passion for building, debugging, and optimizing real-time communication systems, with extensive knowledge and background … hours. Produce and maintain detailed project, policy, and procedural documentation. Skills & Experience: 5+ years of experience building and operating VoIP systems using communications protocols such as UDP, SIP and RTP Strong hands-on with Softswitch, OpenSIPs, RTPEngine. Solid expertise with SIP signalling, RTP, and media relay techniques. Hands-on experience with Session Border Controller, Media Servers and WebRTC. Experience in More ❯
a self-motivated, and experienced VoIP and C++ Development Engineer.This is a hands-on execution role, working on the core telephony stack involving signalling, media processing, SIP call routing, RTP relaying, WebRTC and failover mechanisms. The opportunity is ideal for engineers with a passion for building, debugging, and optimizing real-time communication systems, with extensive knowledge and background … hours. Produce and maintain detailed project, policy, and procedural documentation. Skills & Experience: 5+ years of experience building and operating VoIP systems using communications protocols such as UDP, SIP and RTP Strong hands-on with Softswitch, OpenSIPs, RTPEngine. Solid expertise with SIP signalling, RTP, and media relay techniques. Hands-on experience with Session Border Controller, Media Servers and WebRTC. Experience in More ❯
a self-motivated, and experienced VoIP and C++ Development Engineer.This is a hands-on execution role, working on the core telephony stack involving signalling, media processing, SIP call routing, RTP relaying, WebRTC and failover mechanisms. The opportunity is ideal for engineers with a passion for building, debugging, and optimizing real-time communication systems, with extensive knowledge and background … hours. Produce and maintain detailed project, policy, and procedural documentation. Skills & Experience: 5+ years of experience building and operating VoIP systems using communications protocols such as UDP, SIP and RTP Strong hands-on with Softswitch, OpenSIPs, RTPEngine. Solid expertise with SIP signalling, RTP, and media relay techniques. Hands-on experience with Session Border Controller, Media Servers and WebRTC. Experience in More ❯
a self-motivated, and experienced VoIP and C++ Development Engineer.This is a hands-on execution role, working on the core telephony stack involving signalling, media processing, SIP call routing, RTP relaying, WebRTC and failover mechanisms. The opportunity is ideal for engineers with a passion for building, debugging, and optimizing real-time communication systems, with extensive knowledge and background … hours. Produce and maintain detailed project, policy, and procedural documentation. Skills & Experience: 5+ years of experience building and operating VoIP systems using communications protocols such as UDP, SIP and RTP Strong hands-on with Softswitch, OpenSIPs, RTPEngine. Solid expertise with SIP signalling, RTP, and media relay techniques. Hands-on experience with Session Border Controller, Media Servers and WebRTC. Experience in More ❯
a self-motivated, and experienced VoIP and C++ Development Engineer.This is a hands-on execution role, working on the core telephony stack involving signalling, media processing, SIP call routing, RTP relaying, WebRTC and failover mechanisms. The opportunity is ideal for engineers with a passion for building, debugging, and optimizing real-time communication systems, with extensive knowledge and background … hours. Produce and maintain detailed project, policy, and procedural documentation. Skills & Experience: 5+ years of experience building and operating VoIP systems using communications protocols such as UDP, SIP and RTP Strong hands-on with Softswitch, OpenSIPs, RTPEngine. Solid expertise with SIP signalling, RTP, and media relay techniques. Hands-on experience with Session Border Controller, Media Servers and WebRTC. Experience in More ❯
a self-motivated, and experienced VoIP and C++ Development Engineer.This is a hands-on execution role, working on the core telephony stack involving signalling, media processing, SIP call routing, RTP relaying, WebRTC and failover mechanisms. The opportunity is ideal for engineers with a passion for building, debugging, and optimizing real-time communication systems, with extensive knowledge and background … hours. Produce and maintain detailed project, policy, and procedural documentation. Skills & Experience: 5+ years of experience building and operating VoIP systems using communications protocols such as UDP, SIP and RTP Strong hands-on with Softswitch, OpenSIPs, RTPEngine. Solid expertise with SIP signalling, RTP, and media relay techniques. Hands-on experience with Session Border Controller, Media Servers and WebRTC. Experience in More ❯
a self-motivated, and experienced VoIP and C++ Development Engineer.This is a hands-on execution role, working on the core telephony stack involving signalling, media processing, SIP call routing, RTP relaying, WebRTC and failover mechanisms. The opportunity is ideal for engineers with a passion for building, debugging, and optimizing real-time communication systems, with extensive knowledge and background … hours. Produce and maintain detailed project, policy, and procedural documentation. Skills & Experience: 5+ years of experience building and operating VoIP systems using communications protocols such as UDP, SIP and RTP Strong hands-on with Softswitch, OpenSIPs, RTPEngine. Solid expertise with SIP signalling, RTP, and media relay techniques. Hands-on experience with Session Border Controller, Media Servers and WebRTC. Experience in More ❯
a self-motivated, and experienced VoIP and C++ Development Engineer.This is a hands-on execution role, working on the core telephony stack involving signalling, media processing, SIP call routing, RTP relaying, WebRTC and failover mechanisms. The opportunity is ideal for engineers with a passion for building, debugging, and optimizing real-time communication systems, with extensive knowledge and background … hours. Produce and maintain detailed project, policy, and procedural documentation. Skills & Experience: 5+ years of experience building and operating VoIP systems using communications protocols such as UDP, SIP and RTP Strong hands-on with Softswitch, OpenSIPs, RTPEngine. Solid expertise with SIP signalling, RTP, and media relay techniques. Hands-on experience with Session Border Controller, Media Servers and WebRTC. Experience in More ❯
a self-motivated, and experienced VoIP and C++ Development Engineer.This is a hands-on execution role, working on the core telephony stack involving signalling, media processing, SIP call routing, RTP relaying, WebRTC and failover mechanisms. The opportunity is ideal for engineers with a passion for building, debugging, and optimizing real-time communication systems, with extensive knowledge and background … hours. Produce and maintain detailed project, policy, and procedural documentation. Skills & Experience: 5+ years of experience building and operating VoIP systems using communications protocols such as UDP, SIP and RTP Strong hands-on with Softswitch, OpenSIPs, RTPEngine. Solid expertise with SIP signalling, RTP, and media relay techniques. Hands-on experience with Session Border Controller, Media Servers and WebRTC. Experience in More ❯
a self-motivated, and experienced VoIP and C++ Development Engineer.This is a hands-on execution role, working on the core telephony stack involving signalling, media processing, SIP call routing, RTP relaying, WebRTC and failover mechanisms. The opportunity is ideal for engineers with a passion for building, debugging, and optimizing real-time communication systems, with extensive knowledge and background … hours. Produce and maintain detailed project, policy, and procedural documentation. Skills & Experience: 5+ years of experience building and operating VoIP systems using communications protocols such as UDP, SIP and RTP Strong hands-on with Softswitch, OpenSIPs, RTPEngine. Solid expertise with SIP signalling, RTP, and media relay techniques. Hands-on experience with Session Border Controller, Media Servers and WebRTC. Experience in More ❯
a self-motivated, and experienced VoIP and C++ Development Engineer.This is a hands-on execution role, working on the core telephony stack involving signalling, media processing, SIP call routing, RTP relaying, WebRTC and failover mechanisms. The opportunity is ideal for engineers with a passion for building, debugging, and optimizing real-time communication systems, with extensive knowledge and background … hours. Produce and maintain detailed project, policy, and procedural documentation. Skills & Experience: 5+ years of experience building and operating VoIP systems using communications protocols such as UDP, SIP and RTP Strong hands-on with Softswitch, OpenSIPs, RTPEngine. Solid expertise with SIP signalling, RTP, and media relay techniques. Hands-on experience with Session Border Controller, Media Servers and WebRTC. Experience in More ❯
a self-motivated, and experienced VoIP and C++ Development Engineer.This is a hands-on execution role, working on the core telephony stack involving signalling, media processing, SIP call routing, RTP relaying, WebRTC and failover mechanisms. The opportunity is ideal for engineers with a passion for building, debugging, and optimizing real-time communication systems, with extensive knowledge and background … hours. Produce and maintain detailed project, policy, and procedural documentation. Skills & Experience: 5+ years of experience building and operating VoIP systems using communications protocols such as UDP, SIP and RTP Strong hands-on with Softswitch, OpenSIPs, RTPEngine. Solid expertise with SIP signalling, RTP, and media relay techniques. Hands-on experience with Session Border Controller, Media Servers and WebRTC. Experience in More ❯
a self-motivated, and experienced VoIP and C++ Development Engineer.This is a hands-on execution role, working on the core telephony stack involving signalling, media processing, SIP call routing, RTP relaying, WebRTC and failover mechanisms. The opportunity is ideal for engineers with a passion for building, debugging, and optimizing real-time communication systems, with extensive knowledge and background … hours. Produce and maintain detailed project, policy, and procedural documentation. Skills & Experience: 5+ years of experience building and operating VoIP systems using communications protocols such as UDP, SIP and RTP Strong hands-on with Softswitch, OpenSIPs, RTPEngine. Solid expertise with SIP signalling, RTP, and media relay techniques. Hands-on experience with Session Border Controller, Media Servers and WebRTC. Experience in More ❯
a self-motivated, and experienced VoIP and C++ Development Engineer.This is a hands-on execution role, working on the core telephony stack involving signalling, media processing, SIP call routing, RTP relaying, WebRTC and failover mechanisms. The opportunity is ideal for engineers with a passion for building, debugging, and optimizing real-time communication systems, with extensive knowledge and background … hours. Produce and maintain detailed project, policy, and procedural documentation. Skills & Experience: 5+ years of experience building and operating VoIP systems using communications protocols such as UDP, SIP and RTP Strong hands-on with Softswitch, OpenSIPs, RTPEngine. Solid expertise with SIP signalling, RTP, and media relay techniques. Hands-on experience with Session Border Controller, Media Servers and WebRTC. Experience in More ❯
