The table below looks at the statistics for ISDN skills in IT jobs advertised for the Hertfordshire region. Included is a guide to the average salaries offered in IT jobs that have cited ISDN over the 3 months to 2 September 2015 with a comparison to the same period in the previous 2 years.

Location
3 months to
2 Sep 2015
Same period 2014 Same period 2013
Integrated Service Digital Network (ISDN)
Rank 144 131 124
Rank change year-on-year
-13 -7
Permanent jobs citing ISDN 6 10 7
As % of all permanent IT jobs located in Hertfordshire 0.25% 0.43% 0.35%
As % of the Communications & Networking category 1.40% 2.02% 1.42%
Number of salaries quoted 2 2 5
Average salary £34,500 £38,000 £37,500
Average salary % change year-on-year
-9.21% +1.33%
UK excluding London average salary £45,000 £36,750 £37,500
% change year-on-year
+22.44% -2.00%
ISDN
East of England

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

Communications & Networking Category
Hertfordshire
Permanent IT job ads with a match in the
Communications & Networking category
429 496 492
As % of all permanent IT jobs located in Hertfordshire 17.64% 21.23% 24.31%
Number of salaries quoted 325 389 326
Average salary £45,000 £45,000 £42,500
Average salary % change year-on-year
- +5.88%
90% offered a salary of more than £27,500 £30,000 £24,000
10% offered a salary of more than £57,500 £62,500 £65,800
UK excluding London average salary £41,000 £40,000 £40,000
% change year-on-year
+2.50% -

ISDN
Jobs Demand Trend in Hertfordshire

This chart provides a 3-month moving total of permanent IT jobs citing ISDN across the Hertfordshire region as a proportion of the total demand within the Communications & Networking category.

ISDN Jobs Demand Trend in Hertfordshire

ISDN
Salary Trend in Hertfordshire

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

ISDN Salary Trend in Hertfordshire

ISDN
Salary Histogram in Hertfordshire

This chart provides a salary histogram for IT jobs citing ISDN across the Hertfordshire region over the 3 months to 2 September 2015.

ISDN Salary Histogram in Hertfordshire

ISDN
Job Locations in Hertfordshire

The table below looks at the demand and provides a guide to the average salaries quoted in IT jobs citing ISDN within the Hertfordshire region over the 3 months to 2 September 2015. 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
(Use links below to see detailed
statistics and historical trends)
Rank Change
on Same Period
Last Year
Matching
Permanent
IT Job Ads
Average Salary
Last 3 Months
Average Salary
% Change
on Same Period
Last Year
Live
Job
Vacancies
Watford -4 5 £45,000 -
Welwyn Garden City - 1 £24,000 -
ISDN
East of England

ISDN
Top 30 Related IT Skills in Hertfordshire

For the 6 months to 2 September 2015, IT jobs across the Hertfordshire region citing ISDN also mentioned the following IT skills in order of popularity. The figures indicate the number of jobs and their proportion against the total number of IT job ads sampled that cited ISDN.

1 8 (88.89%) Windows
1 8 (88.89%) MS Exchange
1 8 (88.89%) PBX
1 8 (88.89%) WAN
2 7 (77.78%) Windows Server 2003
2 7 (77.78%) VMware
2 7 (77.78%) Exchange Server 2007
2 7 (77.78%) VMware Infrastructure
2 7 (77.78%) Windows Server 2008
2 7 (77.78%) Windows Server 2012
3 6 (66.67%) Lync
3 6 (66.67%) Microsoft
3 6 (66.67%) Active Directory
3 6 (66.67%) VPN
3 6 (66.67%) LAN
4 5 (55.56%) DNS
4 5 (55.56%) DHCP
4 5 (55.56%) VoIP
4 5 (55.56%) E-Commerce
4 5 (55.56%) Linux
4 5 (55.56%) ITIL
4 5 (55.56%) MPLS
4 5 (55.56%) Terminal Services
4 5 (55.56%) Firewall
4 5 (55.56%) PaaS
4 5 (55.56%) Mentoring
4 5 (55.56%) Coaching
4 5 (55.56%) Data Centre
4 5 (55.56%) Red Hat Enterprise Linux
4 5 (55.56%) VLAN

ISDN
Top Related IT Skills in Hertfordshire by Category

For the 6 months to 2 September 2015, IT jobs across the Hertfordshire region citing ISDN also mentioned the following IT skills grouped by category. The figures indicate the number of jobs and their proportion against the total number of IT job ads sampled that cited ISDN. Up to 20 skills are shown per category.

Application Platforms
1 8 (88.89%) MS Exchange
2 7 (77.78%) Exchange Server 2007
3 6 (66.67%) Lync
4 3 (33.33%) Exchange Server 2010
5 2 (22.22%) Exchange Server 2013
Applications
1 2 (22.22%) MS Office
1 2 (22.22%) MS Excel
Cloud Services
1 5 (55.56%) PaaS
Communications & Networking
1 8 (88.89%) PBX
1 8 (88.89%) WAN
2 6 (66.67%) LAN
2 6 (66.67%) VPN
3 5 (55.56%) DNS
3 5 (55.56%) MPLS
3 5 (55.56%) Firewall
3 5 (55.56%) VoIP
3 5 (55.56%) DHCP
3 5 (55.56%) VLAN
4 3 (33.33%) TCP/IP
5 1 (11.11%) ADSL
5 1 (11.11%) IPsec
General
1 5 (55.56%) Retail
2 1 (11.11%) Telecoms
2 1 (11.11%) Finance
2 1 (11.11%) Games
Job Titles
1 5 (55.56%) Systems Engineer
2 2 (22.22%) Analyst
2 2 (22.22%) Support Engineer
3 1 (11.11%) Service Analyst
3 1 (11.11%) Infrastructure Analyst
3 1 (11.11%) Project Analyst
3 1 (11.11%) Services Delivery Analyst
3 1 (11.11%) IT Graduate
3 1 (11.11%) Graduate
3 1 (11.11%) Senior Systems Engineer
Miscellaneous
1 5 (55.56%) Data Centre
2 1 (11.11%) SecurID
Operating Systems
1 8 (88.89%) Windows
2 7 (77.78%) Windows Server 2012
2 7 (77.78%) Windows Server 2003
2 7 (77.78%) Windows Server 2008
3 5 (55.56%) Red Hat Enterprise Linux
3 5 (55.56%) Linux
4 2 (22.22%) Windows 8
Processes & Methodologies
1 5 (55.56%) ITIL
1 5 (55.56%) E-Commerce
1 5 (55.56%) Mentoring
1 5 (55.56%) Coaching
2 1 (11.11%) Six Sigma
2 1 (11.11%) Project Management
2 1 (11.11%) Service Delivery
2 1 (11.11%) Change Management
2 1 (11.11%) Disaster Recovery
2 1 (11.11%) Information Security
2 1 (11.11%) Lean Six Sigma
Qualifications
1 1 (11.11%) Six Sigma Green Belt
1 1 (11.11%) Six Sigma Yellow Belt
Quality Assurance & Compliance
1 1 (11.11%) SLA
System Software
1 7 (77.78%) VMware Infrastructure
2 6 (66.67%) Active Directory
3 5 (55.56%) Terminal Services
3 5 (55.56%) VMware ESX
4 2 (22.22%) Hyper-V
Systems Management
1 1 (11.11%) SCOM
Vendors
1 7 (77.78%) VMware
2 6 (66.67%) Microsoft
3 3 (33.33%) Cisco
4 2 (22.22%) Apple
5 1 (11.11%) BT