The table below looks at the statistics for ISDN skills in IT jobs advertised for the City of London region. Included is a guide to the salaries offered in IT jobs that have cited ISDN over the 3 months to 30 May 2016 with a comparison to the same period over the previous 2 years.

3 months to
30 May 2016
Same period 2015 Same period 2014
Integrated Service Digital Network (ISDN)
Rank 250 309 357
Rank change year-on-year
+59 +48
Permanent jobs citing ISDN 10 3 9
As % of all permanent IT jobs located in the City of London 0.15% 0.030% 0.069%
As % of the Communications & Networking category 0.94% 0.18% 0.44%
Number of salaries quoted 5 3 9
Median salary £57,500 £57,500 £35,000
Median salary % change year-on-year
- +64.28%
UK excluding London median salary £36,500 £50,000 £36,000
% change year-on-year
-27.00% +38.88%
ISDN
London

The following table is for comparison with the above and provides statistics for the entire Communications & Networking category in permanent jobs advertised in the City of London region.

Communications & Networking Category
City of London
Permanent IT job ads with a match in the
Communications & Networking category
1060 1645 2032
As % of all permanent IT jobs located in the City of London 16.30% 16.26% 15.57%
Number of salaries quoted 920 1414 1720
Median salary £55,000 £52,500 £52,500
Median salary % change year-on-year
+4.76% -
90% offered a salary of more than £32,500 £32,500 £32,500
10% offered a salary of more than £72,500 £72,500 £75,000
UK excluding London median salary £42,500 £42,500 £40,000
% change year-on-year
- +6.25%

ISDN
Jobs Demand Trend in the City of London

The demand trend of job ads across the City of London region citing ISDN as a proportion of all IT jobs with a match in the Communications & Networking category.

ISDN Jobs Demand Trend in the City of London

ISDN
Salary Trend in the City of London

This chart provides the 3-month moving average for salaries quoted in permanent IT jobs citing ISDN across the City of London region.

ISDN Salary Trend in the City of London

ISDN
Top 30 Related IT Skills in the City of London

For the 6 months to 30 May 2016, IT jobs citing ISDN 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 City of London region with a requirement for ISDN.

1 19 (86.36%) Cisco Certification
2 18 (81.82%) Cisco
2 18 (81.82%) ITIL
3 12 (54.55%) LAN
3 12 (54.55%) WAN
4 10 (45.45%) VPN
4 10 (45.45%) VoIP
4 10 (45.45%) CCNP
4 10 (45.45%) Firewall
5 9 (40.91%) Video Conferencing
6 8 (36.36%) TCP/IP
7 7 (31.82%) PSTN
7 7 (31.82%) CCNA
7 7 (31.82%) Banking
7 7 (31.82%) Cisco IPT
7 7 (31.82%) Wireless
7 7 (31.82%) Finance
7 7 (31.82%) Unified Communications
7 7 (31.82%) WebEx
7 7 (31.82%) Red Box
7 7 (31.82%) CCNP Voice
8 6 (27.27%) Network Monitoring
8 6 (27.27%) COBIT
8 6 (27.27%) DV Cleared
8 6 (27.27%) Security Cleared
8 6 (27.27%) CCSA
8 6 (27.27%) Juniper
8 6 (27.27%) Broadband
9 5 (22.73%) MPLS
9 5 (22.73%) CISSP

ISDN
Top Related 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 2 (9.09%) MS Exchange
1 2 (9.09%) SharePoint
1 2 (9.09%) Skype for Business
2 1 (4.55%) SharePoint Server
Applications
1 3 (13.64%) MS Excel
2 1 (4.55%) MS PowerPoint
Communications & Networking
1 12 (54.55%) LAN
1 12 (54.55%) WAN
2 10 (45.45%) Firewall
2 10 (45.45%) VoIP
2 10 (45.45%) VPN
3 8 (36.36%) TCP/IP
4 7 (31.82%) Cisco IPT
4 7 (31.82%) PSTN
4 7 (31.82%) Unified Communications
4 7 (31.82%) WebEx
4 7 (31.82%) Wireless
5 6 (27.27%) Broadband
6 5 (22.73%) MPLS
6 5 (22.73%) Network Security
7 4 (18.18%) Cisco ASA
7 4 (18.18%) DSL
7 4 (18.18%) Extranet
8 2 (9.09%) Skype
9 1 (4.55%) Cisco Nexus
9 1 (4.55%) VPLS
General
1 7 (31.82%) Banking
1 7 (31.82%) Finance
2 2 (9.09%) Telecoms
3 1 (4.55%) Law
Job Titles
1 17 (77.27%) Network Engineer
2 8 (36.36%) Network Support
3 7 (31.82%) Network Support Engineer
3 7 (31.82%) Support Engineer
3 7 (31.82%) Voice Engineer
3 7 (31.82%) Voice Network Engineer
3 7 (31.82%) Voice Support Engineer
4 5 (22.73%) Cisco Engineer
4 5 (22.73%) Cisco Network Engineer
4 5 (22.73%) Juniper Engineer
5 4 (18.18%) Network Security Engineer
5 4 (18.18%) Security Engineer
6 3 (13.64%) DV Cleared Network Engineer
6 3 (13.64%) Principal Engineer
6 3 (13.64%) Principal Security Engineer
7 2 (9.09%) Microsoft Engineer
7 2 (9.09%) Unified Communications Engineer
8 1 (4.55%) Applications Engineer
8 1 (4.55%) Audio Visual Technician
8 1 (4.55%) CISSP Engineer
Libraries, Frameworks & Software Standards
1 1 (4.55%) XMPP
Miscellaneous
1 9 (40.91%) Video Conferencing
2 5 (22.73%) e-Health
3 3 (13.64%) Data Centre
Operating Systems
1 2 (9.09%) Windows
1 2 (9.09%) Windows Server
1 2 (9.09%) Windows Server 2008
Processes & Methodologies
1 18 (81.82%) ITIL
2 6 (27.27%) Network Monitoring
3 5 (22.73%) Network Design
4 4 (18.18%) Business Intelligence
4 4 (18.18%) Cybersecurity
4 4 (18.18%) Mentoring
4 4 (18.18%) Network Management
5 2 (9.09%) Service Management
6 1 (4.55%) Change Control
6 1 (4.55%) CRM
Programming Languages
1 2 (9.09%) PowerShell
Qualifications
1 19 (86.36%) Cisco Certification
2 10 (45.45%) CCNP
3 7 (31.82%) CCNA
3 7 (31.82%) CCNP Voice
4 6 (27.27%) CCSA
4 6 (27.27%) DV Cleared
4 6 (27.27%) Security Cleared
5 5 (22.73%) CISSP
5 5 (22.73%) JNCIA
5 5 (22.73%) JNCIE
5 5 (22.73%) JNCIP
5 5 (22.73%) JNCIS
6 4 (18.18%) CCIE
6 4 (18.18%) SSCP
7 2 (9.09%) MCITP
7 2 (9.09%) MCSE
7 2 (9.09%) Microsoft Certification
8 1 (4.55%) ITIL Certification
Quality Assurance & Compliance
1 6 (27.27%) COBIT
System Software
1 2 (9.09%) Active Directory
Systems Management
1 1 (4.55%) Cisco CUCM
1 1 (4.55%) Cisco UCCX
Vendors
1 18 (81.82%) Cisco
2 7 (31.82%) Red Box
3 6 (27.27%) Juniper
4 4 (18.18%) CheckPoint
5 2 (9.09%) Microsoft
6 1 (4.55%) Polycom
6 1 (4.55%) Riverbed
6 1 (4.55%) Tandberg