Period
to 8 March 2021

The following table provides summary statistics for permanent job vacancies advertised in 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 8 March 2021 with a comparison to the same period in the previous 2 years.

Voice Over IP (VoIP)
England > London
6 months to
8 Mar 2021
Same period 2020 Same period 2019
Rank 381 306 350
Rank change year-on-year -75 +44 +28
Permanent jobs citing VoIP 167 501 545
As % of all permanent jobs advertised in London 0.59% 1.00% 0.88%
As % of the Communications & Networking category 5.84% 7.61% 6.74%
Number of salaries quoted 170 474 482
Median annual salary £50,000 £49,500 £50,000
Median salary % change year-on-year +1.01% -1.00% +5.26%
10th Percentile £30,725 £28,150 £27,500
90th Percentile £82,175 £75,000 £76,250
England median annual salary £41,500 £38,000 £40,000
% change year-on-year +9.21% -5.00% -

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 London with a requirement for communications or computer networking skills.

All Communications and Computer Networking Skills
London
Permanent vacancies with a requirement for communications or computer networking skills 2,862 6,582 8,087
As % of all permanent IT jobs advertised in London 10.11% 13.18% 13.04%
Number of salaries quoted 2,279 5,454 6,673
Median annual salary £62,500 £55,000 £55,000
Median salary % change year-on-year +13.64% - -
10th Percentile £36,250 £30,000 £29,750
90th Percentile £91,250 £86,250 £86,250
England median annual salary £50,000 £47,500 £47,500
% change year-on-year +5.26% - +5.56%

VoIP
Job Vacancy Trend in London

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

Job vacancy trend for VoIP in London

VoIP
Salary Trend in London

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

Salary trend for VoIP in London

VoIP
Salary Histogram in London

Salary distribution for jobs citing VoIP in London over the 6 months to 8 March 2021.

Salary histogram for VoIP in London

VoIP
Job Locations in London

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing VoIP within the London region over the 6 months to 8 March 2021. The 'Rank Change' column provides an indication of the change in demand within each location based on the same 6 month period last year.

Location Rank Change
on Same Period
Last Year
Matching
Permanent
IT Job Ads
Median Salary
Past 6 Months
Median Salary
% Change
on Same Period
Last Year
Live
Job
Vacancies
Central London -10 28 £52,500 +5.00% 7
West London +37 14 £32,000 -44.35% 11
South London +34 13 £57,500 +21.05% 4
East London +8 1 £40,000 +11.88% 1
VoIP
England

For the 6 months to 8 March 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 London region with a requirement for VoIP.

1 83 (49.70%) Active Directory
2 81 (48.50%) Firewall
3 76 (45.51%) Windows
4 66 (39.52%) Cisco
4 66 (39.52%) Microsoft
5 65 (38.92%) Microsoft 365
6 64 (38.32%) DNS
7 57 (34.13%) DHCP
8 55 (32.93%) VMware
9 54 (32.34%) LAN
10 51 (30.54%) WAN
11 50 (29.94%) Windows Server
12 48 (28.74%) Azure
12 48 (28.74%) TCP/IP
13 41 (24.55%) VPN
14 40 (23.95%) ITIL
14 40 (23.95%) Wi-Fi
15 37 (22.16%) Cisco Certification
16 34 (20.36%) AWS
17 32 (19.16%) VMware Infrastructure
18 31 (18.56%) MS Exchange
19 29 (17.37%) Finance
20 28 (16.77%) Telecoms
20 28 (16.77%) MPLS
21 27 (16.17%) Linux
21 27 (16.17%) VLAN
22 26 (15.57%) Microsoft Office
23 25 (14.97%) Wireless
23 25 (14.97%) Problem-Solving
24 24 (14.37%) Citrix

VoIP
Co-occurring IT Skills in 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 31 (18.56%) MS Exchange
2 13 (7.78%) Skype for Business
3 12 (7.19%) SharePoint
4 5 (2.99%) Exchange Server 2013
5 3 (1.80%) IBM Notes
6 2 (1.20%) Confluence
6 2 (1.20%) OpenStack
6 2 (1.20%) SharePoint Server
7 1 (0.60%) Blackberry Enterprise Server
Applications
1 26 (15.57%) Microsoft Office
2 11 (6.59%) MS Visio
3 4 (2.40%) Microsoft Excel
4 1 (0.60%) Microsoft PowerPoint
Business Applications
1 1 (0.60%) NetSuite
Cloud Services
1 65 (38.92%) Microsoft 365
2 48 (28.74%) Azure
3 34 (20.36%) AWS
4 11 (6.59%) Azure Active Directory
5 9 (5.39%) Route 53
5 9 (5.39%) Slack
6 8 (4.79%) Cloud Computing
6 8 (4.79%) GCP
7 6 (3.59%) AWS CloudFormation
7 6 (3.59%) Mimecast
8 3 (1.80%) SaaS
9 2 (1.20%) Serverless
9 2 (1.20%) Virtual Private Cloud
10 1 (0.60%) Amazon CloudWatch
10 1 (0.60%) AWS Lambda
10 1 (0.60%) Azure Functions
10 1 (0.60%) Dynamics 365
10 1 (0.60%) Logic Apps
10 1 (0.60%) OneDrive
10 1 (0.60%) WhatsApp
Communications & Networking
1 81 (48.50%) Firewall
2 64 (38.32%) DNS
3 57 (34.13%) DHCP
4 54 (32.34%) LAN
5 51 (30.54%) WAN
6 48 (28.74%) TCP/IP
7 41 (24.55%) VPN
8 40 (23.95%) Wi-Fi
9 28 (16.77%) MPLS
10 27 (16.17%) VLAN
11 25 (14.97%) Wireless
12 22 (13.17%) Network Security
13 19 (11.38%) SAN
14 18 (10.78%) Skype
15 17 (10.18%) Unified Communications
16 14 (8.38%) PBX
16 14 (8.38%) SNMP
17 13 (7.78%) IPsec
18 12 (7.19%) BGP
18 12 (7.19%) OSPF
Database & Business Intelligence
1 12 (7.19%) SQL Server
2 1 (0.60%) Azure SQL Database
Development Applications
1 4 (2.40%) Jenkins
2 1 (0.60%) CircleCI
2 1 (0.60%) GDB
2 1 (0.60%) Git (software)
2 1 (0.60%) GitLab
2 1 (0.60%) Valgrind
General
1 29 (17.37%) Finance
2 28 (16.77%) Telecoms
3 17 (10.18%) Banking
4 4 (2.40%) Legal
5 3 (1.80%) Law
6 1 (0.60%) Advertising
6 1 (0.60%) Back Office
6 1 (0.60%) Marketing
6 1 (0.60%) Retail
Job Titles
1 40 (23.95%) Network Engineer
2 24 (14.37%) Support Engineer
3 19 (11.38%) 3rd Line Support
4 18 (10.78%) Analyst
5 15 (8.98%) Senior Network Engineer
6 13 (7.78%) 2nd Line Support
7 10 (5.99%) Infrastructure Support
7 10 (5.99%) Support Analyst
8 9 (5.39%) Cisco Engineer
8 9 (5.39%) Infrastructure Engineer
8 9 (5.39%) Unified Communications Engineer
8 9 (5.39%) VoIP Engineer
9 8 (4.79%) 2nd Line Engineer
9 8 (4.79%) Support Technician
10 7 (4.19%) 2nd Line Support Engineer
10 7 (4.19%) 3rd Line Engineer
10 7 (4.19%) 3rd Line Support Engineer
10 7 (4.19%) Developer
10 7 (4.19%) IT Engineer
11 6 (3.59%) IT Manager
Libraries, Frameworks & Software Standards
1 13 (7.78%) WebRTC
2 12 (7.19%) FreeSWITCH
3 8 (4.79%) CSS
3 8 (4.79%) HTML
4 4 (2.40%) FIX Protocol
4 4 (2.40%) POSIX
4 4 (2.40%) XMPP
5 1 (0.60%) 802.1X
5 1 (0.60%) GraphQL
5 1 (0.60%) Lambda Expressions
5 1 (0.60%) Node.js
5 1 (0.60%) React
5 1 (0.60%) WSH
Miscellaneous
1 18 (10.78%) Data Centre
2 17 (10.18%) Management Information System
3 11 (6.59%) Video Conferencing
4 8 (4.79%) Analytical Skills
4 8 (4.79%) Clustering
4 8 (4.79%) Media Streaming
5 6 (3.59%) User Experience
6 5 (2.99%) Handset
6 5 (2.99%) Replication
6 5 (2.99%) Smartphone
7 4 (2.40%) Linux Command Line
7 4 (2.40%) Self-Motivation
8 3 (1.80%) Client/Server
8 3 (1.80%) Driving Licence
9 2 (1.20%) Hybrid Cloud
9 2 (1.20%) iPad
9 2 (1.20%) iPhone
9 2 (1.20%) Wiki
10 1 (0.60%) Embedded Systems
10 1 (0.60%) Enterprise Software
Operating Systems
1 76 (45.51%) Windows
2 50 (29.94%) Windows Server
3 27 (16.17%) Linux
4 23 (13.77%) Windows Server 2008
5 21 (12.57%) Windows Server 2012
6 20 (11.98%) Windows 10
7 17 (10.18%) Windows Server 2016
8 14 (8.38%) Windows 7
9 11 (6.59%) Mac OS
10 10 (5.99%) CentOS
10 10 (5.99%) Debian
10 10 (5.99%) Mac OS X
11 8 (4.79%) Red Hat Enterprise Linux
12 6 (3.59%) Windows 8
13 5 (2.99%) Windows Server 2019
14 4 (2.40%) Android
15 2 (1.20%) Ubuntu
16 1 (0.60%) OpenWrt
16 1 (0.60%) Windows Server 2003
Processes & Methodologies
1 40 (23.95%) ITIL
2 25 (14.97%) Problem-Solving
3 22 (13.17%) Infrastructure Engineering
4 19 (11.38%) Agile Software Development
5 17 (10.18%) Problem Management
6 15 (8.98%) DevOps
6 15 (8.98%) Disaster Recovery
7 13 (7.78%) Incident Management
8 12 (7.19%) Capacity Planning
9 11 (6.59%) Migration
10 10 (5.99%) Patch Management
10 10 (5.99%) Software Engineering
11 9 (5.39%) B2B
11 9 (5.39%) Business Continuity
11 9 (5.39%) Identity Management
11 9 (5.39%) Network Monitoring
11 9 (5.39%) Open Source
11 9 (5.39%) Performance Analysis
11 9 (5.39%) Security Monitoring
12 8 (4.79%) Secure Coding
Programming Languages
1 23 (13.77%) PowerShell
2 21 (12.57%) Python
3 11 (6.59%) C
3 11 (6.59%) SQL
4 10 (5.99%) JavaScript
5 9 (5.39%) C++
6 8 (4.79%) Lua
7 6 (3.59%) PHP
8 5 (2.99%) Bash Shell
8 5 (2.99%) R
9 4 (2.40%) VB
10 2 (1.20%) TypeScript
11 1 (0.60%) Go
11 1 (0.60%) Kotlin
11 1 (0.60%) Rust
11 1 (0.60%) VBScript
Qualifications
1 37 (22.16%) Cisco Certification
2 20 (11.98%) CCNA
3 19 (11.38%) CCNP
4 15 (8.98%) Degree
5 13 (7.78%) JNCIA
6 10 (5.99%) ITIL Foundation Certificate
7 8 (4.79%) MCP
8 7 (4.19%) CCIE
8 7 (4.19%) Microsoft Certification
9 5 (2.99%) Computer Science Degree
10 4 (2.40%) DBS Check
10 4 (2.40%) ITIL Certification
10 4 (2.40%) MCSE
11 3 (1.80%) CCDP
11 3 (1.80%) JNCIS
11 3 (1.80%) SC Cleared
11 3 (1.80%) Security Cleared
11 3 (1.80%) VMware Certified Professional (VCP)
12 2 (1.20%) MCSA
12 2 (1.20%) MCTS
Quality Assurance & Compliance
1 9 (5.39%) SLA
2 1 (0.60%) GDPR
2 1 (0.60%) HIPAA
2 1 (0.60%) PCI DSS
System Software
1 83 (49.70%) Active Directory
2 32 (19.16%) VMware Infrastructure
3 20 (11.98%) Hyper-V
4 17 (10.18%) XenDesktop
5 13 (7.78%) VMware ESXi
6 9 (5.39%) Kamailio
6 9 (5.39%) OpenSIPS
7 6 (3.59%) vSphere
7 6 (3.59%) XenApp
8 5 (2.99%) Virtual Desktop
8 5 (2.99%) VMware Server
9 4 (2.40%) VMware NSX
10 3 (1.80%) Docker
11 2 (1.20%) KVM
11 2 (1.20%) Virtual Servers
11 2 (1.20%) VMware Workstation
12 1 (0.60%) Terminal Services
Systems Management
1 19 (11.38%) SCCM
2 15 (8.98%) Ansible
3 14 (8.38%) Microsoft Intune
4 12 (7.19%) Cisco CUCM
5 10 (5.99%) Puppet
6 9 (5.39%) Nagios
6 9 (5.39%) Opscode Chef
7 8 (4.79%) Cisco Prime
8 6 (3.59%) Terraform
9 5 (2.99%) ITRS Geneos
9 5 (2.99%) Kubernetes
10 4 (2.40%) Failover Clustering
10 4 (2.40%) Jamf Pro
11 3 (1.80%) Cisco UCCX
11 3 (1.80%) vCenter Server
12 2 (1.20%) CASB
13 1 (0.60%) SCOM
13 1 (0.60%) Single Sign-On
Vendors
1 66 (39.52%) Cisco
1 66 (39.52%) Microsoft
2 55 (32.93%) VMware
3 24 (14.37%) Citrix
4 22 (13.17%) Avaya
5 15 (8.98%) Palo Alto
6 13 (7.78%) Juniper
7 12 (7.19%) Dell
8 11 (6.59%) Meraki
9 10 (5.99%) Aerohive Networks
9 10 (5.99%) Ruckus Wireless
10 9 (5.39%) Riverbed
10 9 (5.39%) SolarWinds
11 8 (4.79%) SonicWALL
11 8 (4.79%) Veeam
12 7 (4.19%) Apple
12 7 (4.19%) Sophos
13 6 (3.59%) BroadSoft
13 6 (3.59%) DataCore
13 6 (3.59%) Mitel