Period
to 27 October 2021

The following table provides summary statistics for contract job vacancies advertised in the City of London with a requirement for VoIP skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited VoIP over the 6 months to 27 October 2021 with a comparison to the same period in the previous 2 years.

Note that daily and hourly rates are treated separately in these statistics. When calculating contractor rate percentiles, daily rates are never derived from quoted hourly rates or vice versa.

Voice Over IP (VoIP)
Central London > City of London
6 months to
27 Oct 2021
Same period 2020 Same period 2019
Rank 168 110 196
Rank change year-on-year -58 +86 +32
Contract jobs citing VoIP 12 8 36
As % of all contract jobs advertised in the City of London 0.31% 0.44% 0.61%
As % of the Communications & Networking category 3.57% 3.46% 5.67%
Number of daily rates quoted 8 7 29
10th Percentile £216 £210 £208
25th Percentile £249 £220 £294
Median daily rate (50th Percentile) £338 £240 £335
Median % change year-on-year +40.63% -28.36% -21.18%
75th Percentile £463 £458 £469
90th Percentile £538 £635 £519
Central London median daily rate £280 £240 £400
% change year-on-year +16.67% -40.00% +33.33%

VoIP is in the Communications and Computer Networking category. The following table is for comparison with the above and provides summary statistics for all contract 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
Contract vacancies with a requirement for communications or computer networking skills 336 231 635
As % of all contract IT jobs advertised in the City of London 8.58% 12.83% 10.69%
Number of daily rates quoted 268 183 489
10th Percentile £312 £238 £207
25th Percentile £413 £366 £338
Median daily rate (50th Percentile) £525 £500 £463
Median % change year-on-year +5.00% +8.11% +5.71%
75th Percentile £614 £556 £575
90th Percentile £688 £638 £675
Central London median daily rate £513 £500 £460
% change year-on-year +2.50% +8.70% +6.98%
Number of hourly rates quoted 5 4 13
10th Percentile £16.20 £22.65 £13.80
25th Percentile £21.00 £22.88 £16.50
Median hourly rate £22.50 £30.25 £20.00
Median % change year-on-year -25.62% +51.25% +14.29%
75th Percentile £37.75 £44.13 £42.62
90th Percentile " £54.70 £44.80
Central London median hourly rate £22.50 £30.25 £21.00
% change year-on-year -25.62% +44.05% +16.02%

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
Contractor Daily Rate Trend in the City of London

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

Daily rate trend for VoIP in the City of London

VoIP
Daily Rate Histogram in the City of London

Daily rate distribution for jobs citing VoIP in the City of London over the 6 months to 27 October 2021.

Daily rate histogram for VoIP in the City of London

VoIP
Contractor Hourly Rate Trend in the City of London

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

Hourly rate trend for VoIP in the City of London

For the 6 months to 27 October 2021, IT contractor 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 contract job ads across the City of London region with a requirement for VoIP.

1 8 (66.67%) Cisco
2 6 (50.00%) Firewall
3 5 (41.67%) LAN
3 5 (41.67%) WAN
3 5 (41.67%) Azure
3 5 (41.67%) Meraki
4 4 (33.33%) Network Segmentation
4 4 (33.33%) Network Virtualisation
4 4 (33.33%) Azure ExpressRoute
4 4 (33.33%) SD-WAN
4 4 (33.33%) Network Security
4 4 (33.33%) WLAN
4 4 (33.33%) Microsoft
5 3 (25.00%) Management Information System
5 3 (25.00%) Finance
5 3 (25.00%) Information Security
5 3 (25.00%) Cisco CUCM
6 2 (16.67%) WebRTC
6 2 (16.67%) iOS Development
6 2 (16.67%) Sonus
6 2 (16.67%) Dialogic
6 2 (16.67%) Apple iOS
6 2 (16.67%) Mobile Development
6 2 (16.67%) Apple Swift
6 2 (16.67%) Social Skills
6 2 (16.67%) Problem-Solving
6 2 (16.67%) GraphQL
6 2 (16.67%) Retail
6 2 (16.67%) Polycom
6 2 (16.67%) Microsoft Certification

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 1 (8.33%) CMS
1 1 (8.33%) IBM Notes
1 1 (8.33%) SharePoint
Applications
1 1 (8.33%) Microsoft Office
Cloud Services
1 5 (41.67%) Azure
2 4 (33.33%) Azure ExpressRoute
Communications & Networking
1 6 (50.00%) Firewall
2 5 (41.67%) LAN
2 5 (41.67%) WAN
3 4 (33.33%) Network Security
3 4 (33.33%) SD-WAN
3 4 (33.33%) WLAN
4 2 (16.67%) PBX
4 2 (16.67%) VPN
5 1 (8.33%) Cisco ISE
5 1 (8.33%) Ethernet
5 1 (8.33%) NAS
5 1 (8.33%) Remote Desktop
5 1 (8.33%) Unified Communications
5 1 (8.33%) VLAN
5 1 (8.33%) Wireless
General
1 3 (25.00%) Finance
2 2 (16.67%) Retail
2 2 (16.67%) Social Skills
3 1 (8.33%) Analytical Skills
3 1 (8.33%) Banking
3 1 (8.33%) Financial Institution
3 1 (8.33%) Investment Banking
3 1 (8.33%) Manufacturing
3 1 (8.33%) Marketing
3 1 (8.33%) Presentation Skills
3 1 (8.33%) Telecoms
Job Titles
1 5 (41.67%) Network Engineer
2 4 (33.33%) Support Engineer
3 2 (16.67%) Developer
3 2 (16.67%) iOS Developer
3 2 (16.67%) Junior
3 2 (16.67%) Junior Network Engineer
3 2 (16.67%) Junior Network Support
3 2 (16.67%) Junior Network Support Engineer
3 2 (16.67%) Junior Support Engineer
3 2 (16.67%) Network Support
3 2 (16.67%) Network Support Engineer
4 1 (8.33%) 3rd Line Engineer
4 1 (8.33%) 3rd Line Support Engineer
4 1 (8.33%) Audio Visual Engineer
4 1 (8.33%) Cisco Engineer
4 1 (8.33%) Desktop Engineer
4 1 (8.33%) Desktop Support Engineer
4 1 (8.33%) Network Architect
4 1 (8.33%) Unified Communications Engineer
4 1 (8.33%) VoIP Engineer
Libraries, Frameworks & Software Standards
1 2 (16.67%) GraphQL
1 2 (16.67%) WebRTC
2 1 (8.33%) Apollo GraphQL
2 1 (8.33%) RESTful
Miscellaneous
1 3 (25.00%) Management Information System
2 1 (8.33%) Blackberry
2 1 (8.33%) Data Centre
2 1 (8.33%) Video Conferencing
Operating Systems
1 2 (16.67%) Apple iOS
2 1 (8.33%) Mac OS
2 1 (8.33%) Windows
2 1 (8.33%) Windows 10
2 1 (8.33%) Windows 7
Processes & Methodologies
1 4 (33.33%) Network Segmentation
1 4 (33.33%) Network Virtualisation
2 3 (25.00%) Information Security
3 2 (16.67%) iOS Development
3 2 (16.67%) Mobile Development
3 2 (16.67%) Problem-Solving
4 1 (8.33%) Agile Software Development
4 1 (8.33%) Application Packaging
4 1 (8.33%) Change Management
4 1 (8.33%) Decision-Making
4 1 (8.33%) Inventory Control
4 1 (8.33%) Inventory Management
4 1 (8.33%) ITIL
4 1 (8.33%) Line Management
4 1 (8.33%) Problem Management
4 1 (8.33%) Software Engineering
4 1 (8.33%) SOLID
4 1 (8.33%) TDD
Programming Languages
1 2 (16.67%) Apple Swift
Qualifications
1 2 (16.67%) Microsoft Certification
2 1 (8.33%) Degree
System Software
1 2 (16.67%) Active Directory
2 1 (8.33%) vSphere
Systems Management
1 3 (25.00%) Cisco CUCM
2 1 (8.33%) Tivoli Storage Manager
Vendors
1 8 (66.67%) Cisco
2 5 (41.67%) Meraki
3 4 (33.33%) Microsoft
4 2 (16.67%) Dialogic
4 2 (16.67%) Polycom
4 2 (16.67%) Siemens
4 2 (16.67%) Sonus
5 1 (8.33%) Bloomberg
5 1 (8.33%) Fidessa
5 1 (8.33%) Fortinet
5 1 (8.33%) HP
5 1 (8.33%) IBM
5 1 (8.33%) Lotus
5 1 (8.33%) VMware