Period
to 9 May 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 9 May 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
9 May 2021
Same period 2020 Same period 2019
Rank 217 200 241
Rank change year-on-year -17 +41 +24
Permanent jobs citing VoIP 16 75 82
As % of all permanent jobs advertised in the City of London 0.32% 1.00% 0.81%
As % of the Communications & Networking category 3.62% 7.90% 6.39%
Number of salaries quoted 13 72 67
10th Percentile £35,000 £28,550 £26,250
25th Percentile £36,000 £32,688 £29,375
Median annual salary (50th Percentile) £52,500 £47,500 £37,500
Median % change year-on-year +10.53% +26.67% -21.05%
75th Percentile £83,750 £72,813 £58,750
90th Percentile £89,800 £75,500 £68,750
Central London median annual salary £50,000 £50,000 £35,000
% change year-on-year - +42.86% -22.22%

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 442 949 1,283
As % of all permanent IT jobs advertised in the City of London 8.91% 12.60% 12.74%
Number of salaries quoted 394 849 1,161
10th Percentile £41,250 £35,000 £29,750
25th Percentile £50,000 £42,500 £41,250
Median annual salary (50th Percentile) £64,236 £57,500 £60,000
Median % change year-on-year +11.71% -4.17% +4.35%
75th Percentile £80,500 £75,000 £77,500
90th Percentile £97,500 £88,750 £88,750
Central London median annual salary £60,000 £57,500 £55,000
% change year-on-year +4.35% +4.55% -

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 9 May 2021.

Salary histogram for VoIP in the City of London

For the 6 months to 9 May 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 11 (68.75%) Cisco
2 10 (62.50%) Microsoft 365
3 9 (56.25%) Microsoft
3 9 (56.25%) Windows
3 9 (56.25%) Active Directory
4 8 (50.00%) TCP/IP
5 6 (37.50%) DNS
5 6 (37.50%) Citrix
5 6 (37.50%) Azure
5 6 (37.50%) XenDesktop
5 6 (37.50%) VMware
5 6 (37.50%) Data Centre
6 5 (31.25%) Windows Server
6 5 (31.25%) Telecoms
6 5 (31.25%) Finance
6 5 (31.25%) SCCM
6 5 (31.25%) Disaster Recovery
6 5 (31.25%) MS Exchange
6 5 (31.25%) DHCP
6 5 (31.25%) Python
6 5 (31.25%) Microsoft Office
7 4 (25.00%) ITIL
7 4 (25.00%) WAN
7 4 (25.00%) LAN
7 4 (25.00%) Firewall
7 4 (25.00%) Hyper-V
7 4 (25.00%) AWS
7 4 (25.00%) Unified Communications
7 4 (25.00%) Cisco CUCM
7 4 (25.00%) Windows Server 2012

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 (31.25%) MS Exchange
2 1 (6.25%) IBM Notes
2 1 (6.25%) IIS
2 1 (6.25%) SAS
2 1 (6.25%) Tomcat
Applications
1 5 (31.25%) Microsoft Office
2 1 (6.25%) Microsoft Excel
Business Applications
1 1 (6.25%) FastStats
1 1 (6.25%) Unica
Cloud Services
1 10 (62.50%) Microsoft 365
2 6 (37.50%) Azure
3 4 (25.00%) AWS
4 3 (18.75%) Mimecast
5 2 (12.50%) AWS CloudFormation
6 1 (6.25%) Azure Active Directory
6 1 (6.25%) Cloud Computing
Communications & Networking
1 8 (50.00%) TCP/IP
2 6 (37.50%) DNS
3 5 (31.25%) DHCP
4 4 (25.00%) Cisco IOS
4 4 (25.00%) Firewall
4 4 (25.00%) LAN
4 4 (25.00%) Unified Communications
4 4 (25.00%) WAN
5 3 (18.75%) BIG-IP
5 3 (18.75%) Cisco ASA
5 3 (18.75%) H.323
5 3 (18.75%) MGCP
5 3 (18.75%) MPLS
5 3 (18.75%) NetScaler
5 3 (18.75%) VLAN
5 3 (18.75%) VPN
5 3 (18.75%) Wireless
6 2 (12.50%) BGP
6 2 (12.50%) OSPF
6 2 (12.50%) Sourcefire
Database & Business Intelligence
1 2 (12.50%) SQL Server
Development Applications
1 1 (6.25%) Sonatype Nexus
1 1 (6.25%) Visual Studio
General
1 5 (31.25%) Finance
1 5 (31.25%) Telecoms
2 3 (18.75%) Banking
2 3 (18.75%) Social Skills
3 2 (12.50%) Analytical Skills
4 1 (6.25%) Games
4 1 (6.25%) Marketing
Job Titles
1 5 (31.25%) 3rd Line Support
2 3 (18.75%) IT Support
2 3 (18.75%) Network Engineer
2 3 (18.75%) Support Engineer
3 2 (12.50%) Analyst
3 2 (12.50%) IT Engineer
3 2 (12.50%) IT Support Engineer
3 2 (12.50%) Senior Network Engineer
3 2 (12.50%) Support Analyst
4 1 (6.25%) 2nd Line Support Engineer
4 1 (6.25%) 3rd Line Support Analyst
4 1 (6.25%) Cisco Architect
4 1 (6.25%) Cisco Engineer
4 1 (6.25%) Desktop Engineer
4 1 (6.25%) Infrastructure Manager
4 1 (6.25%) Infrastructure Support Engineer
4 1 (6.25%) IT Support Analyst
4 1 (6.25%) Senior Infrastructure Manager
4 1 (6.25%) Senior Voice Engineer
4 1 (6.25%) Voice Engineer
Libraries, Frameworks & Software Standards
1 2 (12.50%) XMPP
2 1 (6.25%) 802.1X
2 1 (6.25%) FIX Protocol
2 1 (6.25%) LAMP
Miscellaneous
1 6 (37.50%) Data Centre
2 2 (12.50%) Video Conferencing
3 1 (6.25%) Client/Server
3 1 (6.25%) EFT
3 1 (6.25%) Management Information System
3 1 (6.25%) Smartphone
3 1 (6.25%) User Experience
Operating Systems
1 9 (56.25%) Windows
2 5 (31.25%) Windows Server
3 4 (25.00%) Windows Server 2012
4 3 (18.75%) Windows Server 2008
5 2 (12.50%) Android
6 1 (6.25%) Linux
6 1 (6.25%) VMS
6 1 (6.25%) Windows 10
6 1 (6.25%) Windows 7
Processes & Methodologies
1 5 (31.25%) Disaster Recovery
2 4 (25.00%) ITIL
3 3 (18.75%) Problem-Solving
4 2 (12.50%) DNA
4 2 (12.50%) Infrastructure as Code
4 2 (12.50%) Infrastructure Engineering
4 2 (12.50%) Process Improvement
5 1 (6.25%) Analytics
5 1 (6.25%) Business Continuity Planning
5 1 (6.25%) CRM
5 1 (6.25%) Decision-Making
5 1 (6.25%) Due Diligence
5 1 (6.25%) Migration
5 1 (6.25%) Network Monitoring
5 1 (6.25%) Patch Management
5 1 (6.25%) Root Cause Analysis
5 1 (6.25%) Software Licensing
5 1 (6.25%) Task Automation
5 1 (6.25%) Vulnerability Scanning
5 1 (6.25%) Workshop Facilitation
Programming Languages
1 5 (31.25%) Python
2 3 (18.75%) PHP
2 3 (18.75%) PowerShell
2 3 (18.75%) R
3 2 (12.50%) SQL
4 1 (6.25%) Bash Shell
4 1 (6.25%) T-SQL
Qualifications
1 3 (18.75%) CCNP
1 3 (18.75%) Cisco Certification
2 2 (12.50%) CCIE
3 1 (6.25%) CCVP
3 1 (6.25%) Degree
3 1 (6.25%) ITIL Foundation Certificate
3 1 (6.25%) MCP
System Software
1 9 (56.25%) Active Directory
2 6 (37.50%) XenDesktop
3 4 (25.00%) Hyper-V
4 3 (18.75%) XenApp
5 2 (12.50%) VMware Infrastructure
6 1 (6.25%) OpenSIPS
6 1 (6.25%) Virtual Desktop
6 1 (6.25%) VMware ESXi
6 1 (6.25%) VMware NSX
Systems Management
1 5 (31.25%) SCCM
2 4 (25.00%) Cisco CUCM
3 3 (18.75%) Ansible
3 3 (18.75%) Microsoft Intune
4 2 (12.50%) Cisco Prime
4 2 (12.50%) ITRS Geneos
4 2 (12.50%) Terraform
5 1 (6.25%) Backup Exec
5 1 (6.25%) Symantec Endpoint Protection
5 1 (6.25%) vCenter Server
Vendors
1 11 (68.75%) Cisco
2 9 (56.25%) Microsoft
3 6 (37.50%) Citrix
3 6 (37.50%) VMware
4 3 (18.75%) F5
4 3 (18.75%) NetApp
4 3 (18.75%) Palo Alto
4 3 (18.75%) SolarWinds
4 3 (18.75%) Sophos
4 3 (18.75%) Veeam
5 2 (12.50%) ExtraHop
5 2 (12.50%) Radianz
6 1 (6.25%) Apple
6 1 (6.25%) Avaya
6 1 (6.25%) Dell
6 1 (6.25%) Genesys
6 1 (6.25%) Lotus
6 1 (6.25%) Mitel
6 1 (6.25%) Symantec
6 1 (6.25%) Veritas