The table below looks at the statistics for ISDN skills in IT jobs advertised across the UK. 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 809 892 875
Rank change year-on-year
+83 -17
Permanent jobs citing ISDN 112 75 128
As % of all permanent IT jobs located in the UK 0.11% 0.069% 0.11%
As % of the Communications & Networking category 0.67% 0.39% 0.61%
Number of salaries quoted 68 65 118
Median salary £45,000 £47,500 £35,750
Median salary % change year-on-year
-5.26% +32.86%
90% offered a salary of more than £27,000 £30,000 £23,760
10% offered a salary of more than £67,500 £65,000 £55,000
UK excluding London median salary £36,500 £50,000 £36,000
% change year-on-year
-27.00% +38.88%

The following table is for comparison with the above and provides statistics for the entire Communications & Networking category in permanent jobs advertised across the UK.

Communications & Networking Category
UK
Permanent IT job ads with a match in the
Communications & Networking category
16801 19285 20844
As % of all permanent IT jobs located in the UK 17.11% 17.84% 17.18%
Number of salaries quoted 13931 15489 16664
Median salary £45,000 £45,000 £42,500
Median salary % change year-on-year
- +5.88%
90% offered a salary of more than £26,500 £27,000 £27,000
10% offered a salary of more than £67,500 £62,500 £67,500
UK excluding London median salary £42,500 £42,500 £40,000
% change year-on-year
- +6.25%

ISDN
Jobs Demand Trend

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

ISDN Jobs Demand Trend in the UK

ISDN
Salary Trend

This chart provides the 3-month moving average for salaries quoted in permanent IT jobs citing ISDN within the UK.

ISDN Salary Trend in the UK

ISDN
Salary Histogram

This chart provides a salary histogram for IT jobs citing ISDN over the 3 months to 30 May 2016 within the UK.

ISDN Salary Histogram in the UK

ISDN
Top 30 Job Locations

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing ISDN within the UK over the 3 months to 30 May 2016. The 'Rank Change' column provides an indication of the change in demand within each location based on the same 3 month period last year.

Location
(Click see detailed
statistics and trends)
Rank Change
on Same Period
Last Year
Matching
Permanent
IT Job Ads
Median Salary
Last 3 Months
Median Salary
% Change
on Same Period
Last Year
Live
Job
Vacancies
England +90 111 £45,000 -10.00% 14
East of England +65 36 £31,000 -7.46% 4
London +50 35 £57,500 +53.33% 2
Hertfordshire +53 30 £27,500 -5.17% 2
South East +19 22 £52,250 -5.00% 4
City of London +59 10 £57,500 -
Berkshire +21 10 £57,500 +9.52%
East Midlands - 8 £29,000 -
Derbyshire - 6 £29,000 -
Derby - 6 £29,000 -
Reading +12 5 £57,500 +12.19%
Bracknell - 5 - -
South West +11 4 £67,500 +58.82% 1
West Sussex 0 4 £52,250 +27.43%
Stevenage -2 4 £29,750 +2.58%
Surrey -2 4 £48,750 -25.00% 2
Crawley -5 3 £52,000 +4.00%
Bournemouth - 3 £67,500 -
Peterborough - 3 £55,000 -
Newmarket - 3 £38,000 -
Dorset - 3 £67,500 -
Cambridgeshire - 3 £55,000 -
Suffolk - 3 £38,000 -
West Midlands - 3 £35,000 -
Buckinghamshire +27 2 £23,500 -31.88% 1
Milton Keynes +26 2 £23,500 -16.07% 1
North West +17 2 £32,500 -25.71% 3
Guildford -5 2 - - 2
Solihull - 2 £35,000 -
Watford - 2 - - 1

ISDN
Top 30 Related IT Skills

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 with a requirement for ISDN.

1 170 (72.65%) Cisco
2 125 (53.42%) Firewall
3 123 (52.56%) Cisco Certification
4 115 (49.15%) ITIL
5 107 (45.73%) WAN
6 104 (44.44%) VPN
7 103 (44.02%) LAN
8 89 (38.03%) Juniper
9 88 (37.61%) TCP/IP
10 84 (35.90%) VoIP
11 75 (32.05%) Wireless
12 70 (29.91%) CCNA
13 62 (26.50%) Network Security
14 60 (25.64%) Security Cleared
14 60 (25.64%) Network Design
15 59 (25.21%) Network Monitoring
16 58 (24.79%) MPLS
16 58 (24.79%) Broadband
17 52 (22.22%) SC Cleared
18 49 (20.94%) DV Cleared
19 48 (20.51%) PSTN
20 43 (18.38%) Windows
20 43 (18.38%) CCNP
20 43 (18.38%) JNCIA
20 43 (18.38%) JNCIS
20 43 (18.38%) JNCIP
20 43 (18.38%) JNCIE
21 41 (17.52%) e-Health
21 41 (17.52%) Telecoms
22 37 (15.81%) IPsec

ISDN
Top Related IT Skills 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 12 (5.13%) Skype for Business
2 7 (2.99%) MS Exchange
3 6 (2.56%) CMS
4 3 (1.28%) IIS
4 3 (1.28%) SharePoint
5 2 (0.85%) Exchange Server 2010
6 1 (0.43%) Exchange Server 2007
6 1 (0.43%) Exchange Server 2013
6 1 (0.43%) SharePoint Server
Applications
1 7 (2.99%) MS Excel
2 4 (1.71%) MS Office
3 2 (0.85%) MS PowerPoint
Business Applications
1 2 (0.85%) SAP Oil and Gas
2 1 (0.43%) Dynamics CRM
Cloud Services
1 5 (2.14%) Office 365
2 2 (0.85%) Amazon AWS
2 2 (0.85%) GitHub
2 2 (0.85%) PaaS
2 2 (0.85%) SaaS
Communications & Networking
1 125 (53.42%) Firewall
2 107 (45.73%) WAN
3 104 (44.44%) VPN
4 103 (44.02%) LAN
5 88 (37.61%) TCP/IP
6 84 (35.90%) VoIP
7 75 (32.05%) Wireless
8 62 (26.50%) Network Security
9 58 (24.79%) Broadband
9 58 (24.79%) MPLS
10 48 (20.51%) PSTN
11 37 (15.81%) IPsec
12 33 (14.10%) BGP
12 33 (14.10%) Cisco Nexus
12 33 (14.10%) DNS
12 33 (14.10%) OSPF
13 32 (13.68%) Unified Communications
14 31 (13.25%) Cisco ASA
14 31 (13.25%) DHCP
14 31 (13.25%) DSL
Database & Business Intelligence
1 4 (1.71%) SQL Server
2 2 (0.85%) Amazon RDS
2 2 (0.85%) MySQL
2 2 (0.85%) SQL Server 2008
3 1 (0.43%) SQL Server 2005
3 1 (0.43%) SQL Server 2012
Development Applications
1 6 (2.56%) VSS/SourceSafe
2 4 (1.71%) Git (software)
General
1 41 (17.52%) Telecoms
2 32 (13.68%) Finance
3 16 (6.84%) Banking
4 7 (2.99%) Electronics
4 7 (2.99%) Manufacturing
5 6 (2.56%) Retail
6 4 (1.71%) Automotive
7 3 (1.28%) Advertising
7 3 (1.28%) Marketing
8 2 (0.85%) Billing
8 2 (0.85%) Financial Institution
9 1 (0.43%) Back Office
9 1 (0.43%) German Language
9 1 (0.43%) Investment Banking
9 1 (0.43%) Law
9 1 (0.43%) Multimedia
Job Titles
1 141 (60.26%) Network Engineer
2 64 (27.35%) Support Engineer
3 60 (25.64%) Cisco Engineer
3 60 (25.64%) Cisco Network Engineer
4 58 (24.79%) Network Support
5 54 (23.08%) Network Support Engineer
6 42 (17.95%) Juniper Engineer
7 27 (11.54%) Cisco Support
7 27 (11.54%) Voice Engineer
8 25 (10.68%) Cisco Network Support Engineer
8 25 (10.68%) Juniper Support
9 20 (8.55%) Cisco Support Engineer
9 20 (8.55%) Voice Support Engineer
10 15 (6.41%) Analyst
10 15 (6.41%) Core Network Engineer
10 15 (6.41%) Voice Network Engineer
11 14 (5.98%) Architect
11 14 (5.98%) Unified Communications Engineer
12 13 (5.56%) DV Cleared Network Engineer
12 13 (5.56%) SC Cleared Network Engineer
Libraries, Frameworks & Software Standards
1 10 (4.27%) 802.1X
2 9 (3.85%) XMPP
3 6 (2.56%) RFC 2833
4 4 (1.71%) HTML
5 3 (1.28%) EDI
5 3 (1.28%) JTAPI
5 3 (1.28%) TAPI
6 2 (0.85%) CCXML
6 2 (0.85%) CSS
6 2 (0.85%) FreeSWITCH
6 2 (0.85%) HTML5
6 2 (0.85%) LAMP
6 2 (0.85%) Ruby on Rails
6 2 (0.85%) Symfony
6 2 (0.85%) VXML
6 2 (0.85%) Web Services
6 2 (0.85%) XHTML
7 1 (0.43%) .NET
7 1 (0.43%) COM
Miscellaneous
1 41 (17.52%) e-Health
2 35 (14.96%) Data Centre
3 29 (12.39%) Video Conferencing
4 17 (7.26%) PKI
5 16 (6.84%) Handset
6 14 (5.98%) Analytical Skills
7 12 (5.13%) Management Information System
8 10 (4.27%) IVR
9 6 (2.56%) Computer Science
9 6 (2.56%) Mathematics
10 5 (2.14%) Driving Licence
10 5 (2.14%) RSA SecurID
11 3 (1.28%) Enterprise Software
11 3 (1.28%) User Experience
12 2 (0.85%) Equities
12 2 (0.85%) Fixed Income
12 2 (0.85%) Smartphone
13 1 (0.43%) FMCG
13 1 (0.43%) Life Science
Operating Systems
1 43 (18.38%) Windows
2 27 (11.54%) Unix
3 18 (7.69%) Windows NT
4 17 (7.26%) Linux
5 15 (6.41%) Windows 2000
6 7 (2.99%) Windows Server
6 7 (2.99%) Windows Server 2008
7 4 (1.71%) Windows Server 2003
8 3 (1.28%) Apple iOS
8 3 (1.28%) Red Hat Enterprise Linux
9 2 (0.85%) Android
9 2 (0.85%) Windows 8
9 2 (0.85%) Windows Phone
9 2 (0.85%) Windows Server 2012
10 1 (0.43%) Mac OS X
10 1 (0.43%) Windows 7
10 1 (0.43%) Windows XP
Processes & Methodologies
1 115 (49.15%) ITIL
2 60 (25.64%) Network Design
3 59 (25.21%) Network Monitoring
4 32 (13.68%) Coaching
5 23 (9.83%) Mentoring
6 19 (8.12%) Change Control
7 17 (7.26%) Presales
8 15 (6.41%) Service Delivery
9 14 (5.98%) Load Balancing
10 12 (5.13%) WAN Optimisation
11 11 (4.70%) Capacity Planning
11 11 (4.70%) Service Management
12 10 (4.27%) Network Management
12 10 (4.27%) Operations Management
13 9 (3.85%) Information Management
13 9 (3.85%) Information Security
14 8 (3.42%) Continuous Improvement
14 8 (3.42%) CRM
14 8 (3.42%) Cybersecurity
14 8 (3.42%) Project Management
Programming Languages
1 9 (3.85%) C
2 6 (2.56%) C#
3 5 (2.14%) Java
4 4 (1.71%) C++
4 4 (1.71%) Python
5 3 (1.28%) SQL
6 2 (0.85%) Objective-C
6 2 (0.85%) PHP
6 2 (0.85%) PHP 5
6 2 (0.85%) PowerShell
6 2 (0.85%) Ruby
Qualifications
1 123 (52.56%) Cisco Certification
2 70 (29.91%) CCNA
3 60 (25.64%) Security Cleared
4 52 (22.22%) SC Cleared
5 49 (20.94%) DV Cleared
6 43 (18.38%) CCNP
6 43 (18.38%) JNCIA
6 43 (18.38%) JNCIE
6 43 (18.38%) JNCIP
6 43 (18.38%) JNCIS
7 30 (12.82%) Degree
8 21 (8.97%) CCNP Voice
9 17 (7.26%) CCIE
10 9 (3.85%) CISSP
11 6 (2.56%) CCSA
11 6 (2.56%) SSCP
12 5 (2.14%) ITIL Certification
13 4 (1.71%) MCSE
13 4 (1.71%) Microsoft Certification
14 3 (1.28%) Avaya Certification
Quality Assurance & Compliance
1 18 (7.69%) SLA
2 13 (5.56%) COBIT
3 6 (2.56%) Sarbanes-Oxley
4 4 (1.71%) PCI DSS
5 3 (1.28%) PA-DSS
System Software
1 15 (6.41%) Active Directory
2 10 (4.27%) VMware Infrastructure
3 7 (2.99%) Terminal Services
4 6 (2.56%) Firmware
5 5 (2.14%) VMware ESX
6 2 (0.85%) Hyper-V
6 2 (0.85%) Kamailio
6 2 (0.85%) KVM
6 2 (0.85%) VirtualBox
6 2 (0.85%) vSphere
6 2 (0.85%) XenServer
7 1 (0.43%) VMware ESXi
7 1 (0.43%) XenApp
Systems Management
1 31 (13.25%) Cisco CUCM
2 20 (8.55%) Cisco UCCX
3 15 (6.41%) Nagios
4 10 (4.27%) Cisco Prime
4 10 (4.27%) FortiGate
4 10 (4.27%) SolarWinds Orion
5 6 (2.56%) Cisco UCCE
6 3 (1.28%) TrustSec
7 2 (0.85%) Norton AntiVirus
7 2 (0.85%) OpenView
7 2 (0.85%) SCCM
Vendors
1 170 (72.65%) Cisco
2 89 (38.03%) Juniper
3 33 (14.10%) Microsoft
4 23 (9.83%) Avaya
4 23 (9.83%) F5
5 21 (8.97%) CheckPoint
6 19 (8.12%) Palo Alto
7 17 (7.26%) VMware
8 16 (6.84%) HP
9 15 (6.41%) Sybase
10 14 (5.98%) Red Box
11 13 (5.56%) Polycom
12 11 (4.70%) IronPort
12 11 (4.70%) SolarWinds
13 10 (4.27%) Barracuda Networks
13 10 (4.27%) Blue Coat
13 10 (4.27%) BroadSoft
14 9 (3.85%) Acme Packet
15 8 (3.42%) Huawei
16 7 (2.99%) Tandberg
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