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 28 July 2016 with a comparison to the same period over the previous 2 years.

3 months to
28 Jul 2016
Same period 2015 Same period 2014
Integrated Service Digital Network (ISDN)
Rank 792 898 861
Rank change year-on-year
+106 -37
Permanent jobs citing ISDN 123 70 132
As % of all permanent IT jobs located in the UK 0.13% 0.064% 0.11%
As % of the Communications & Networking category 0.74% 0.38% 0.64%
Number of salaries quoted 89 59 113
Median salary £43,000 £50,000 £37,500
Median salary % change year-on-year
-14.00% +33.33%
90% offered a salary of more than £26,000 £31,700 £25,000
10% offered a salary of more than £60,000 £65,000 £50,000
UK excluding London median salary £38,000 £50,000 £37,500
% change year-on-year
-24.00% +33.33%

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
16583 18590 20776
As % of all permanent IT jobs located in the UK 16.91% 16.92% 17.64%
Number of salaries quoted 13798 15290 16608
Median salary £45,000 £45,000 £45,000
90% offered a salary of more than £27,500 £27,000 £27,000
10% offered a salary of more than £67,500 £65,000 £70,000
UK excluding London median salary £42,500 £41,000 £40,000
% change year-on-year
+3.65% +2.50%

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 28 July 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 28 July 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 +101 121 £43,000 -14.00% 9
London +77 41 £45,000 -10.00% 7
East of England +56 31 £37,500 -14.28%
South East +20 27 £52,500 -10.63%
Hertfordshire +38 18 £27,500 -38.88%
City of London +71 10 £56,250 -2.17% 1
Berkshire +12 10 £45,000 -21.73%
West Midlands -11 8 £27,500 -44.72%
Watford +21 7 - -
Surrey +13 7 £55,000 -15.38%
North West +12 7 £32,500 -40.90% 1
Essex - 7 £35,000 -
Reading +18 6 £45,000 -
Solihull +17 6 £27,500 -47.61%
South West - 6 £67,500 -
Buckinghamshire +29 4 £23,500 -31.88%
Milton Keynes +24 4 £23,500 -
Guildford +7 4 £66,250 +1.92%
West Sussex +3 4 £52,500 +5.00%
Manchester -4 4 £35,000 -36.36%
Chigwell - 4 £36,250 -
Cambridgeshire +13 3 £55,000 +57.14%
Birmingham -13 3 £27,500 -44.44%
Suffolk - 3 £38,000 -
Peterborough - 3 £55,000 -
Bracknell - 3 - -
Newmarket - 3 £38,000 -
Cheshire +39 2 £32,500 +66.66% 1
Wales +3 2 - -
Crawley -9 2 £52,250 +4.50%

ISDN
Top 30 Related IT Skills

For the 6 months to 28 July 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.

1 176 (72.13%) Cisco
2 131 (53.69%) Cisco Certification
3 127 (52.05%) Firewall
4 122 (50.00%) WAN
5 111 (45.49%) ITIL
6 106 (43.44%) VPN
6 106 (43.44%) LAN
7 95 (38.93%) TCP/IP
8 93 (38.11%) VoIP
9 91 (37.30%) Juniper
10 83 (34.02%) CCNA
11 80 (32.79%) Wireless
12 75 (30.74%) MPLS
13 62 (25.41%) Network Security
14 56 (22.95%) Network Design
15 55 (22.54%) Network Monitoring
16 54 (22.13%) Security Cleared
17 53 (21.72%) DNS
17 53 (21.72%) Broadband
18 48 (19.67%) DHCP
19 46 (18.85%) Telecoms
20 44 (18.03%) DV Cleared
21 43 (17.62%) IPsec
21 43 (17.62%) CCNP
22 42 (17.21%) Windows
22 42 (17.21%) SC Cleared
23 41 (16.80%) OSPF
24 40 (16.39%) Data Centre
25 39 (15.98%) PSTN
26 38 (15.57%) Microsoft

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 22 (9.02%) Skype for Business
2 10 (4.10%) MS Exchange
3 4 (1.64%) CMS
4 2 (0.82%) Blackberry Enterprise Server
4 2 (0.82%) IIS
5 1 (0.41%) Confluence
5 1 (0.41%) Exchange Server 2010
5 1 (0.41%) SharePoint
Applications
1 6 (2.46%) MS Excel
2 3 (1.23%) MS Office
3 2 (0.82%) MS PowerPoint
Business Applications
1 6 (2.46%) Cisco SocialMiner
2 3 (1.23%) SAP Oil and Gas
3 1 (0.41%) Dynamics AX
3 1 (0.41%) Dynamics CRM
Cloud Services
1 11 (4.51%) Office 365
2 8 (3.28%) PaaS
Communications & Networking
1 127 (52.05%) Firewall
2 122 (50.00%) WAN
3 106 (43.44%) LAN
3 106 (43.44%) VPN
4 95 (38.93%) TCP/IP
5 93 (38.11%) VoIP
6 80 (32.79%) Wireless
7 75 (30.74%) MPLS
8 62 (25.41%) Network Security
9 53 (21.72%) Broadband
9 53 (21.72%) DNS
10 48 (19.67%) DHCP
11 43 (17.62%) IPsec
12 41 (16.80%) OSPF
13 39 (15.98%) PSTN
14 37 (15.16%) Unified Communications
15 36 (14.75%) Cisco Nexus
16 35 (14.34%) BGP
17 31 (12.70%) DSL
18 30 (12.30%) Cisco ASA
Database & Business Intelligence
1 4 (1.64%) SQL Server
2 1 (0.41%) SQL Server 2008
Development Applications
1 2 (0.82%) VSS/SourceSafe
2 1 (0.41%) JIRA
General
1 46 (18.85%) Telecoms
2 20 (8.20%) Finance
3 10 (4.10%) Electronics
3 10 (4.10%) Retail
4 9 (3.69%) Banking
5 5 (2.05%) Law
6 4 (1.64%) Investment Banking
6 4 (1.64%) Manufacturing
6 4 (1.64%) Marketing
7 3 (1.23%) Advertising
7 3 (1.23%) Billing
7 3 (1.23%) Financial Institution
8 1 (0.41%) French Language
8 1 (0.41%) German Language
8 1 (0.41%) Legal
8 1 (0.41%) Multimedia
Job Titles
1 127 (52.05%) Network Engineer
2 58 (23.77%) Support Engineer
3 55 (22.54%) Cisco Engineer
4 52 (21.31%) Cisco Network Engineer
5 43 (17.62%) Network Support
6 39 (15.98%) Network Support Engineer
7 36 (14.75%) Juniper Engineer
8 28 (11.48%) Cisco Support
8 28 (11.48%) Voice Engineer
9 24 (9.84%) Cisco Network Support Engineer
10 21 (8.61%) Juniper Support
11 20 (8.20%) Cisco Support Engineer
12 18 (7.38%) Analyst
13 15 (6.15%) Core Network Engineer
14 14 (5.74%) Architect
14 14 (5.74%) Unified Communications Engineer
15 11 (4.51%) 3rd Line Engineer
15 11 (4.51%) DV Cleared Network Engineer
15 11 (4.51%) SC Cleared Network Engineer
16 10 (4.10%) LAN Engineer
Libraries, Frameworks & Software Standards
1 19 (7.79%) XMPP
2 8 (3.28%) RFC 2833
3 7 (2.87%) 802.1X
4 6 (2.46%) JTAPI
4 6 (2.46%) TAPI
5 4 (1.64%) CCXML
5 4 (1.64%) VXML
5 4 (1.64%) Web Services
6 3 (1.23%) EDI
7 2 (0.82%) .NET
7 2 (0.82%) COM
8 1 (0.41%) Ajax
8 1 (0.41%) HTML
8 1 (0.41%) WAP
Miscellaneous
1 40 (16.39%) Data Centre
2 36 (14.75%) e-Health
3 23 (9.43%) Video Conferencing
4 20 (8.20%) Handset
5 18 (7.38%) Analytical Skills
6 16 (6.56%) PKI
7 15 (6.15%) Management Information System
8 11 (4.51%) IVR
9 10 (4.10%) Mathematics
10 6 (2.46%) Computer Science
11 5 (2.05%) Driving Licence
12 4 (1.64%) User Experience
13 3 (1.23%) Virtual Team
14 2 (0.82%) Blackberry
14 2 (0.82%) Enterprise Software
14 2 (0.82%) Equities
14 2 (0.82%) Fixed Income
14 2 (0.82%) Smartphone
15 1 (0.41%) Life Science
15 1 (0.41%) RSA SecurID
Operating Systems
1 42 (17.21%) Windows
2 24 (9.84%) Linux
3 23 (9.43%) Unix
4 18 (7.38%) Windows NT
5 15 (6.15%) Windows 2000
6 10 (4.10%) Windows Server
6 10 (4.10%) Windows Server 2008
7 9 (3.69%) Windows Server 2003
8 8 (3.28%) Red Hat Enterprise Linux
9 7 (2.87%) Windows Server 2012
10 3 (1.23%) Windows 7
11 1 (0.41%) Apple iOS
11 1 (0.41%) CentOS
11 1 (0.41%) Mac OS X
11 1 (0.41%) Ubuntu
11 1 (0.41%) Windows 8
Processes & Methodologies
1 111 (45.49%) ITIL
2 56 (22.95%) Network Design
3 55 (22.54%) Network Monitoring
4 30 (12.30%) Coaching
5 26 (10.66%) Mentoring
6 20 (8.20%) Presales
6 20 (8.20%) Service Delivery
7 19 (7.79%) WAN Optimisation
8 16 (6.56%) Change Control
8 16 (6.56%) Network Management
8 16 (6.56%) Project Management
9 14 (5.74%) Load Balancing
10 13 (5.33%) Operations Management
11 12 (4.92%) E-Commerce
12 11 (4.51%) Information Management
13 9 (3.69%) CRM
13 9 (3.69%) Problem Management
14 7 (2.87%) Business Intelligence
14 7 (2.87%) Cybersecurity
14 7 (2.87%) Kalman Filter
Programming Languages
1 14 (5.74%) C
2 6 (2.46%) Python
3 5 (2.05%) Java
4 4 (1.64%) C#
4 4 (1.64%) C++
4 4 (1.64%) SQL
5 2 (0.82%) Bash Shell
6 1 (0.41%) JavaScript
6 1 (0.41%) Perl
6 1 (0.41%) PHP
6 1 (0.41%) PowerShell
6 1 (0.41%) VBScript
Qualifications
1 131 (53.69%) Cisco Certification
2 83 (34.02%) CCNA
3 54 (22.13%) Security Cleared
4 44 (18.03%) DV Cleared
5 43 (17.62%) CCNP
6 42 (17.21%) SC Cleared
7 38 (15.57%) JNCIP
8 36 (14.75%) JNCIA
8 36 (14.75%) JNCIE
8 36 (14.75%) JNCIS
9 30 (12.30%) Degree
10 17 (6.97%) CCNP Voice
11 11 (4.51%) CISSP
12 10 (4.10%) CCIE
13 9 (3.69%) ITIL Certification
14 7 (2.87%) SSCP
15 6 (2.46%) Microsoft Certification
16 4 (1.64%) HND
17 3 (1.23%) Avaya Certification
17 3 (1.23%) MCSE
Quality Assurance & Compliance
1 14 (5.74%) SLA
2 6 (2.46%) PCI DSS
3 4 (1.64%) COBIT
3 4 (1.64%) PA-DSS
4 2 (0.82%) Sarbanes-Oxley
System Software
1 17 (6.97%) VMware Infrastructure
2 15 (6.15%) Active Directory
2 15 (6.15%) VMware ESX
3 12 (4.92%) Terminal Services
4 4 (1.64%) Firmware
5 3 (1.23%) VirtualBox
6 2 (0.82%) Hyper-V
6 2 (0.82%) KVM
6 2 (0.82%) Virtual Servers
6 2 (0.82%) XenServer
7 1 (0.41%) Virtual Machines
7 1 (0.41%) VMware ESXi
Systems Management
1 29 (11.89%) Cisco CUCM
2 23 (9.43%) Cisco UCCX
3 12 (4.92%) Cisco Prime
3 12 (4.92%) SolarWinds Orion
4 9 (3.69%) Nagios
5 6 (2.46%) FortiGate
6 4 (1.64%) Cisco UCCE
6 4 (1.64%) SCCM
6 4 (1.64%) TrustSec
7 3 (1.23%) Cisco CME
7 3 (1.23%) Norton AntiVirus
8 2 (0.82%) QRadar
9 1 (0.41%) Cacti
9 1 (0.41%) Opscode Chef
9 1 (0.41%) Puppet
9 1 (0.41%) SCOM
Vendors
1 176 (72.13%) Cisco
2 91 (37.30%) Juniper
3 38 (15.57%) Microsoft
4 28 (11.48%) CheckPoint
5 27 (11.07%) VMware
6 25 (10.25%) Avaya
7 23 (9.43%) F5
8 22 (9.02%) Palo Alto
9 16 (6.56%) Sybase
10 14 (5.74%) SolarWinds
11 12 (4.92%) Barracuda Networks
12 11 (4.51%) Polycom
13 10 (4.10%) BroadSoft
13 10 (4.10%) Citrix
13 10 (4.10%) Nortel
13 10 (4.10%) Red Box
14 8 (3.28%) Acme Packet
14 8 (3.28%) Huawei
14 8 (3.28%) Mitel
15 7 (2.87%) IronPort
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