Period
to 20 January 2021

The following table provides summary statistics for permanent job vacancies advertised in the City of London with a requirement for VoIP skills. Included is a benchmarking guide to the salaries offered in vacancies that have cited VoIP over the 6 months to 20 January 2021 with a comparison to the same period in the previous 2 years.

Voice Over IP (VoIP)
Central London > City of London
6 months to
20 Jan 2021
Same period 2020 Same period 2019
Rank 198 219 249
Rank change year-on-year +21 +30 +24
Permanent jobs citing VoIP 19 93 82
As % of all permanent jobs advertised in the City of London 0.44% 1.02% 0.81%
As % of the Communications & Networking category 3.91% 7.91% 6.43%
Number of salaries quoted 18 93 63
Median annual salary £70,750 £42,500 £49,500
Median salary % change year-on-year +66.47% -14.14% +4.21%
10th Percentile £31,025 £23,850 £30,550
90th Percentile £90,000 £68,750 £75,500
Central London median annual salary £53,750 £45,750 £49,500
% change year-on-year +17.49% -7.58% +10.00%

VoIP is in the Communications and Computer Networking category. The following table is for comparison with the above and provides summary statistics for all permanent job vacancies advertised in the City of London with a requirement for communications or computer networking skills.

All Communications and Computer Networking Skills
City of London
Permanent vacancies with a requirement for communications or computer networking skills 486 1,176 1,275
As % of all permanent IT jobs advertised in the City of London 11.27% 12.87% 12.57%
Number of salaries quoted 427 1,047 1,139
Median annual salary £67,500 £57,500 £55,000
Median salary % change year-on-year +17.39% +4.55% -
10th Percentile £40,625 £30,300 £31,250
90th Percentile £97,500 £91,250 £90,000
Central London median annual salary £65,000 £57,500 £55,000
% change year-on-year +13.04% +4.55% +4.76%

VoIP
Job Vacancy Trend in the City of London

Job postings citing VoIP as a proportion of all IT jobs advertised in the City of London.

Job vacancy trend for VoIP in the City of London

VoIP
Salary Trend in the City of London

3-month moving average salary quoted in jobs citing VoIP in the City of London.

Salary trend for VoIP in the City of London

VoIP
Salary Histogram in the City of London

Salary distribution for jobs citing VoIP in the City of London over the 6 months to 20 January 2021.

Salary histogram for VoIP in the City of London

For the 6 months to 20 January 2021, IT jobs citing VoIP also mentioned the following skills in order of popularity. The figures indicate the absolute number co-occurrences and as a proportion of all permanent job ads across the City of London region with a requirement for VoIP.

1 15 (78.95%) Cisco
2 14 (73.68%) Office 365
3 12 (63.16%) Microsoft
4 11 (57.89%) TCP/IP
4 11 (57.89%) Finance
5 10 (52.63%) DNS
5 10 (52.63%) Data Centre
6 9 (47.37%) Active Directory
7 8 (42.11%) Windows
7 8 (42.11%) Unified Communications
7 8 (42.11%) VMware
8 7 (36.84%) Banking
8 7 (36.84%) Cisco CUCM
8 7 (36.84%) ITIL
8 7 (36.84%) Citrix
8 7 (36.84%) Firewall
9 6 (31.58%) WAN
9 6 (31.58%) DHCP
9 6 (31.58%) LAN
9 6 (31.58%) Azure
9 6 (31.58%) Windows Server
10 5 (26.32%) Problem-Solving
10 5 (26.32%) Analytical Skills
10 5 (26.32%) XenDesktop
10 5 (26.32%) Cisco IOS
10 5 (26.32%) SCCM
10 5 (26.32%) Video Conferencing
10 5 (26.32%) MS Exchange
10 5 (26.32%) Avaya
10 5 (26.32%) Disaster Recovery

VoIP
Co-occurring IT Skills in the City of London by Category

The follow tables expand on the table above by listing co-occurrences grouped by category. The same job type, locality and period is covered with up to 20 co-occurrences shown in each of the following categories:

Application Platforms
1 5 (26.32%) MS Exchange
2 3 (15.79%) IBM Notes
3 1 (5.26%) Blackberry Enterprise Server
Applications
1 2 (10.53%) Microsoft Office
2 1 (5.26%) Microsoft Excel
Cloud Services
1 14 (73.68%) Office 365
2 6 (31.58%) Azure
3 3 (15.79%) AWS
3 3 (15.79%) AWS CloudFormation
3 3 (15.79%) Cloud Computing
4 2 (10.53%) Mimecast
Communications & Networking
1 11 (57.89%) TCP/IP
2 10 (52.63%) DNS
3 8 (42.11%) Unified Communications
4 7 (36.84%) Firewall
5 6 (31.58%) DHCP
5 6 (31.58%) LAN
5 6 (31.58%) WAN
6 5 (26.32%) Cisco IOS
6 5 (26.32%) MPLS
7 3 (15.79%) BIG-IP
7 3 (15.79%) Cisco ASA
7 3 (15.79%) Extranet
7 3 (15.79%) H.323
7 3 (15.79%) MGCP
7 3 (15.79%) NetScaler
7 3 (15.79%) Network Security
7 3 (15.79%) NX-OS
7 3 (15.79%) Sourcefire
7 3 (15.79%) Wi-Fi
7 3 (15.79%) Wireless
Database & Business Intelligence
1 3 (15.79%) SQL Server
General
1 11 (57.89%) Finance
2 7 (36.84%) Banking
3 4 (21.05%) Telecoms
4 1 (5.26%) Law
4 1 (5.26%) Legal
Job Titles
1 5 (26.32%) Support Engineer
2 4 (21.05%) 3rd Line Support
2 4 (21.05%) Architect
2 4 (21.05%) Cisco Architect
2 4 (21.05%) Cisco Engineer
2 4 (21.05%) IT Engineer
2 4 (21.05%) Unified Communications Engineer
3 3 (15.79%) IT Support
3 3 (15.79%) IT Support Engineer
3 3 (15.79%) Network Engineer
4 2 (10.53%) Infrastructure Engineer
4 2 (10.53%) IT Infrastructure Engineer
5 1 (5.26%) 2nd Line Engineer
5 1 (5.26%) 2nd Line Support Engineer
5 1 (5.26%) Desktop Support Engineer
5 1 (5.26%) Infrastructure Support
5 1 (5.26%) Junior Support Engineer
5 1 (5.26%) Senior Network Engineer
5 1 (5.26%) Service Desk Analyst
5 1 (5.26%) Telecoms Support Engineer
Libraries, Frameworks & Software Standards
1 4 (21.05%) XMPP
2 2 (10.53%) FIX Protocol
Miscellaneous
1 10 (52.63%) Data Centre
2 5 (26.32%) Analytical Skills
2 5 (26.32%) Video Conferencing
3 3 (15.79%) Client/Server
3 3 (15.79%) User Experience
4 2 (10.53%) Smartphone
5 1 (5.26%) Management Information System
5 1 (5.26%) Wiki
Operating Systems
1 8 (42.11%) Windows
2 6 (31.58%) Windows Server
3 4 (21.05%) Windows Server 2012
4 2 (10.53%) Android
4 2 (10.53%) Windows 10
4 2 (10.53%) Windows Server 2008
5 1 (5.26%) Windows 7
5 1 (5.26%) Windows Server 2003
5 1 (5.26%) Windows Server 2016
5 1 (5.26%) Windows Server 2019
Processes & Methodologies
1 7 (36.84%) ITIL
2 5 (26.32%) Disaster Recovery
2 5 (26.32%) Problem-Solving
3 4 (21.05%) Analytics
3 4 (21.05%) Infrastructure Engineering
3 4 (21.05%) Migration
4 3 (15.79%) Business Continuity
4 3 (15.79%) Business Continuity Planning
4 3 (15.79%) DNA
4 3 (15.79%) Infrastructure as Code
4 3 (15.79%) Patch Management
4 3 (15.79%) Process Improvement
4 3 (15.79%) Vulnerability Scanning
5 2 (10.53%) Decision-Making
6 1 (5.26%) Data Privacy
6 1 (5.26%) Desktop Virtualisation
6 1 (5.26%) DevOps
6 1 (5.26%) Kalman Filter
6 1 (5.26%) Project Management
6 1 (5.26%) Workshop Facilitation
Programming Languages
1 3 (15.79%) PHP
1 3 (15.79%) PowerShell
1 3 (15.79%) Python
1 3 (15.79%) R
1 3 (15.79%) SQL
Qualifications
1 3 (15.79%) CCIE
1 3 (15.79%) CCNP
1 3 (15.79%) Cisco Certification
1 3 (15.79%) Degree
1 3 (15.79%) ITIL Foundation Certificate
2 1 (5.26%) MCP
System Software
1 9 (47.37%) Active Directory
2 5 (26.32%) XenDesktop
3 4 (21.05%) Virtual Desktop
3 4 (21.05%) VMware Infrastructure
4 3 (15.79%) VMware ESXi
4 3 (15.79%) XenApp
5 2 (10.53%) Hyper-V
5 2 (10.53%) VMware NSX
Systems Management
1 7 (36.84%) Cisco CUCM
2 5 (26.32%) SCCM
3 3 (15.79%) Ansible
3 3 (15.79%) Cisco Prime
3 3 (15.79%) ITRS Geneos
3 3 (15.79%) Microsoft Intune
3 3 (15.79%) Terraform
3 3 (15.79%) vCenter Server
4 1 (5.26%) CASB
Vendors
1 15 (78.95%) Cisco
2 12 (63.16%) Microsoft
3 8 (42.11%) VMware
4 7 (36.84%) Citrix
5 5 (26.32%) Avaya
6 4 (21.05%) NICE Systems
7 3 (15.79%) ExtraHop
7 3 (15.79%) F5
7 3 (15.79%) Lotus
7 3 (15.79%) Palo Alto
7 3 (15.79%) Radianz
7 3 (15.79%) SolarWinds
7 3 (15.79%) Sophos
8 2 (10.53%) Mitel
8 2 (10.53%) NetApp
8 2 (10.53%) Veeam
9 1 (5.26%) Apple
9 1 (5.26%) CheckPoint
9 1 (5.26%) HP
9 1 (5.26%) RightFax