2 Permanent ISDN Jobs in London

relationships. Required Skills & Qualifications: In-depth knowledge of telephony technologies including Unify (Siemens) portfolio, Mitel, handset provisioning, voice & telephony, UCaaS, MS Teams, networking (SIP, ISDN), cloud and SaaS, Contact Center, Call Groups, Hunt Groups, and Auto Attendants. Experience with migration and transformation of voice/telephony services. Ability to apply more »

Unity Voice Mail. Knowledge of Video Technologies – WebEx, CMS, TMS. Experience with voice over IP Protocols (SIP, H323, MGCP, SCCP, etc.), Legacy Voice Protocols (ISDN, QSIG etc.). Ability to debug voice gateway including Qsig, SIP protocols. Good to have: Knowledge of Wallboard- 2ring. Knowledge of Outbound Dialer- Acqueon. Experience more »