The following table provides summary statistics for permanent job vacancies advertised in Cardiff with a requirement for VoIP skills. Included is a benchmarking guide to the salaries offered in vacancies that have cited VoIP over the 3 months to 24 March 2017 with a comparison to the same period in the previous 2 years.

3 months to
24 Mar 2017
Same period 2016 Same period 2015
Voice Over IP (VoIP)
South Wales / Cardiff
Rank 61 66 63
Rank change year-on-year +5 -3  
Permanent jobs citing VoIP 7 11 4
As % of all permanent IT jobs advertised in Cardiff 1.25% 1.57% 0.62%
As % of the Communications & Networking category 8.54% 10.58% 3.08%
Number of salaries quoted 7 5 4
Median salary £25,000 £50,000 £29,000
Median salary % change year-on-year -50.00% +72.41%  
90% offered a salary of more than £22,000 £41,150 £20,900
10% offered a salary of more than £35,700 £50,000 £50,750
UK excluding London median salary £37,500 £40,000 £36,625
% change year-on-year -6.25% +9.21%  

VoIP is in the communications and computer networking skills category. The next table is for comparison with the above and provides summary statistics for all permanent job vacancies advertised in Cardiff with a requirement for communications and computer networking skills.

Communications & Computer Network Skills
Cardiff
Permanent job vacancies with a requirement for communications and computer networking skills 82 104 130
As % of all permanent IT job vacancies advertised in Cardiff 14.59% 14.86% 20.09%
Number of salaries quoted 82 81 104
Median salary £37,500 £37,500 £40,000
Median salary % change year-on-year - -6.25%  
90% offered a salary of more than £25,000 £27,900 £29,500
10% offered a salary of more than £44,000 £57,500 £60,000
UK excluding London median salary £40,000 £42,500 £41,000
% change year-on-year -5.88% +3.65%  

VoIP
Job Vacancy Trend in Cardiff

The job posting trend of jobs advertised in Cardiff citing VoIP as a proportion of all permanent or contract IT jobs with a match in the Communications & Networking category.

Job vacancy trend for VoIP in Cardiff

VoIP
Salary Trend in Cardiff

This chart provides the 3-month moving average for salaries quoted in permanent IT jobs citing VoIP in Cardiff.

Salary trend for VoIP in Cardiff

VoIP
Salary Histogram in Cardiff

The salary distribution of IT jobs citing VoIP in Cardiff over the 3 months to 24 March 2017.

Salary histogram for VoIP in Cardiff

VoIP
Top 30 Related IT Skills in Cardiff

For the 6 months to 24 March 2017, IT jobs citing VoIP also mentioned the following skills in order of popularity. The figures indicate the number co-occurrences and its proportion to all job ads across the Cardiff region with a requirement for VoIP.

1 8 (57.14%) Windows
1 8 (57.14%) Cisco
2 7 (50.00%) TCP/IP
2 7 (50.00%) Active Directory
2 7 (50.00%) Linux
3 6 (42.86%) Firewall
4 5 (35.71%) Red Hat
4 5 (35.71%) Microsoft
4 5 (35.71%) SonicWALL
4 5 (35.71%) CentOS
5 4 (28.57%) Hyper-V
5 4 (28.57%) Debian
5 4 (28.57%) PostgreSQL
5 4 (28.57%) VMware
5 4 (28.57%) Ubuntu
5 4 (28.57%) Brocade
5 4 (28.57%) Wireshark
5 4 (28.57%) Acme Packet
5 4 (28.57%) Network Monitoring
5 4 (28.57%) Python
5 4 (28.57%) PBX
5 4 (28.57%) Java
5 4 (28.57%) MySQL
5 4 (28.57%) Oracle
5 4 (28.57%) RTP
5 4 (28.57%) MPLS
6 3 (21.43%) Avaya
6 3 (21.43%) SLA
6 3 (21.43%) ITIL
6 3 (21.43%) WAN

VoIP
Top Related IT Skills in Cardiff 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 (7.14%) IIS
1 1 (7.14%) Skype for Business
Applications
1 2 (14.29%) MS Excel
2 1 (7.14%) MS Visio
Cloud Services
1 1 (7.14%) IaaS
1 1 (7.14%) Microsoft Azure
1 1 (7.14%) Office 365
1 1 (7.14%) PaaS
1 1 (7.14%) SaaS
Communications & Networking
1 7 (50.00%) TCP/IP
2 6 (42.86%) Firewall
3 4 (28.57%) MPLS
3 4 (28.57%) PBX
3 4 (28.57%) RTP
3 4 (28.57%) Wireshark
4 3 (21.43%) LAN
4 3 (21.43%) WAN
5 2 (14.29%) DHCP
5 2 (14.29%) DNS
5 2 (14.29%) VPN
6 1 (7.14%) EIGRP
6 1 (7.14%) Ethernet
6 1 (7.14%) H.323
6 1 (7.14%) Internet
6 1 (7.14%) MGCP
6 1 (7.14%) PPP
6 1 (7.14%) SAN
6 1 (7.14%) SSL
6 1 (7.14%) Wi-Fi
Database & Business Intelligence
1 4 (28.57%) MySQL
1 4 (28.57%) PostgreSQL
General
1 1 (7.14%) Games
1 1 (7.14%) Telecoms
Job Titles
1 7 (50.00%) Systems Engineer
2 5 (35.71%) Support Engineer
3 2 (14.29%) 2nd Line Engineer
3 2 (14.29%) 2nd Line Support
3 2 (14.29%) 2nd Line Support Engineer
3 2 (14.29%) IT Engineer
3 2 (14.29%) IT Support
3 2 (14.29%) IT Support Engineer
3 2 (14.29%) Network Engineer
4 1 (7.14%) Cisco Engineer
4 1 (7.14%) Cisco Security Engineer
4 1 (7.14%) Firewall Engineer
4 1 (7.14%) Junior Systems Engineer
4 1 (7.14%) Senior Cisco Engineer
4 1 (7.14%) Senior Cisco Network Engineer
4 1 (7.14%) Senior Firewall Engineer
4 1 (7.14%) Senior IT Engineer
4 1 (7.14%) Senior IT Support
4 1 (7.14%) Senior Network Security Engineer
4 1 (7.14%) Senior Security Engineer
Miscellaneous
1 1 (7.14%) IVR
1 1 (7.14%) Management Information System
Operating Systems
1 8 (57.14%) Windows
2 7 (50.00%) Linux
3 5 (35.71%) CentOS
4 4 (28.57%) Debian
4 4 (28.57%) Ubuntu
5 3 (21.43%) Windows Server 2008
5 3 (21.43%) Windows Server 2012
6 2 (14.29%) Unix
6 2 (14.29%) Windows 8
7 1 (7.14%) AIX
7 1 (7.14%) Windows Server
Processes & Methodologies
1 4 (28.57%) Network Monitoring
2 3 (21.43%) Application Packaging
2 3 (21.43%) ITIL
3 2 (14.29%) Service Delivery
4 1 (7.14%) Capacity Planning
4 1 (7.14%) Disaster Recovery
4 1 (7.14%) Mentoring
4 1 (7.14%) PRINCE2
4 1 (7.14%) Risk Management
Programming Languages
1 4 (28.57%) Java
1 4 (28.57%) Python
2 1 (7.14%) PowerShell
2 1 (7.14%) SQL
Qualifications
1 2 (14.29%) CCNA
1 2 (14.29%) Cisco Certification
1 2 (14.29%) Degree
1 2 (14.29%) MCSE
1 2 (14.29%) Microsoft Certification
1 2 (14.29%) RHCE
1 2 (14.29%) VMware Certified Professional (VCP)
2 1 (7.14%) CCDA
2 1 (7.14%) CCNP
2 1 (7.14%) SC Cleared
2 1 (7.14%) Security Cleared
Quality Assurance & Compliance
1 3 (21.43%) SLA
System Software
1 7 (50.00%) Active Directory
2 4 (28.57%) Hyper-V
3 3 (21.43%) VMware Infrastructure
4 2 (14.29%) vSphere
Systems Management
1 1 (7.14%) Cisco CUCM
1 1 (7.14%) Cisco UCCE
1 1 (7.14%) Cisco UCCX
1 1 (7.14%) SCCM
1 1 (7.14%) WSUS
Vendors
1 8 (57.14%) Cisco
2 5 (35.71%) Microsoft
2 5 (35.71%) Red Hat
2 5 (35.71%) SonicWALL
3 4 (28.57%) Acme Packet
3 4 (28.57%) Brocade
3 4 (28.57%) Oracle
3 4 (28.57%) VMware
4 3 (21.43%) Avaya
5 2 (14.29%) CheckPoint
5 2 (14.29%) Juniper
6 1 (7.14%) Aruba
6 1 (7.14%) Blue Coat
6 1 (7.14%) Dell
6 1 (7.14%) EMC
6 1 (7.14%) F5
6 1 (7.14%) IBM
6 1 (7.14%) Intel Security
6 1 (7.14%) Nokia