Network Voice Admin

Infoplus Technologies UK Ltd; Warwick; On-site; GBP 50,000 - 70,000; Full time

Job summary

A technology solutions company in Warwick seeks a seasoned Network Voice Admin with 8-10 years of experience in supporting voice/telephony infrastructure. This role requires in-depth knowledge of Cisco Call Manager and MS Teams, including SIP and VoIP protocols. Candidates must be adept in managing telecom and network carriers and have experience with service requests through Service Now. Immediate start is available, and this contract lasts for 6 months with the possibility of extension.

Qualifications

• 8-10 years of relevant experience in network voice administration.
• Strong understanding of VoIP protocols and SIP configuration.
• Experience managing telecom and network carrier deliveries.

Responsibilities

• Configure and manage MS Teams voice and Cisco Call Manager.
• Support and troubleshoot voice infrastructure issues.
• Manage service requests through Service Now.

Skills

MS Teams Voice

Cisco Call Manager

CISCO LAN Switches

IP Networks

SIP

VoIP protocols

Service Now

Education

Cisco CCNP Collaboration

Microsoft Certified Teams Voice/Collaboration Communications Systems Engineer

ITIL Foundation

Job description

Network Voice Admin

Warwick, Warwickshire

Contract Posted by: Infoplus Technologies UK Ltd

Posted: Monday, 8 December 2025

Job Description

• Mandatory Skills: Network Voice Admin
• Experience: 8-10 Years
• This role requires a voice/telephony engineer with familiarity of supporting MS Teams Voice and Cisco Call Manager infrastructure and the provisioning of users and devices.
• Capable of configuring CISCO LAN Switches for the purpose of configuring IPT services
• Understanding of IP Networks, addressing systems, routing for the purpose of configuring IPT services
• Knowledge of various Legacy circuit types such as PSTN, POTS, ISDN30, assignment of number ranges, and telco ordering processes
• Comprehensive understanding of SIP, SBC configuration and troubleshooting
• Strong understanding of VoIP protocols (SIP, H.323), QoS, and VLANs.
• Understanding of MS Teams Phone Service, provisioning, and troubleshooting
• Capable of managing service requests and incidents through a Service Now resolver groups
• Experience managing telecom and network carriers/supplier delivery and SLAs
• Experience operating and troubleshooting call recording platforms such as Verint.

Preferred certifications

• Cisco CCNP Collaboration
• Microsoft Certified Teams Voice/Collaboration Communications Systems Engineer
• ITIL Foundation

Job Details

• Location: Warwick, Warwickshire, UK
• Industry: IT
• Duration: 6 months (Extendable)
• Start Date: ASAP - Immediate
• Company: Infoplus Technologies UK Ltd
• Contact: Devendra
• Email: Contact This Company
• Reference: JS
• Posted Date: 12/8/2025 10:15:04 PM
• Permalink: http://www.careerboard.com/fBoix