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 average salaries offered in IT jobs that have cited ISDN over the 3 months to 6 March 2015 with a comparison to the same period in the previous 2 years.

Location
3 months to
6 Mar 2015
Same period 2014 Same period 2013
Integrated Service Digital Network (ISDN)
Rank 296 289 305
Rank change year-on-year
-7 +16
Permanent jobs citing ISDN 7 13 3
As % of all permanent IT jobs located in the City of London 0.070% 0.13% 0.028%
As % of the Communications & Networking category 0.37% 0.82% 0.14%
Number of salaries quoted 7 11 3
Average salary £47,500 £37,500 £47,500
Average salary % change year-on-year
+26.66% -21.05%
UK excluding London average salary £40,000 £35,000 £31,875
% change year-on-year
+14.28% +9.80%
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
1904 1580 2169
As % of all permanent IT jobs located in the City of London 19.04% 15.41% 20.29%
Number of salaries quoted 1596 1333 1943
Average salary £55,000 £50,000 £50,000
Average salary % change year-on-year
+10.00% -
90% offered a salary of more than £33,000 £32,000 £32,500
10% offered a salary of more than £70,000 £70,000 £70,000
UK excluding London average salary £40,000 £40,000 £40,000

ISDN
Jobs Demand Trend in the City of London

This chart provides a 3-month moving total of permanent IT jobs citing ISDN across the City of London region as a proportion of the total demand within 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 6 March 2015, IT jobs across the City of London 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 26 (89.66%) Cisco Certification
2 24 (82.76%) CCNP
3 23 (79.31%) CCNA
4 20 (68.97%) Microsoft
5 15 (51.72%) Active Directory
5 15 (51.72%) Cisco
5 15 (51.72%) ITIL
5 15 (51.72%) MS Exchange
5 15 (51.72%) LAN
5 15 (51.72%) WAN
5 15 (51.72%) Microsoft Certification
5 15 (51.72%) Firewall
5 15 (51.72%) VMware
6 13 (44.83%) Wireless
6 13 (44.83%) JNCIA
6 13 (44.83%) Lync
6 13 (44.83%) MCSE
6 13 (44.83%) MCSA
7 12 (41.38%) MS Excel
7 12 (41.38%) Juniper
7 12 (41.38%) VMware Infrastructure
7 12 (41.38%) Cisco ASA
8 11 (37.93%) MPLS
8 11 (37.93%) OSPF
8 11 (37.93%) BGP
9 10 (34.48%) Cisco CUCM
10 9 (31.03%) Project Management
11 8 (27.59%) TCP/IP
11 8 (27.59%) VPN
11 8 (27.59%) Unified Communications

ISDN
Top Related IT Skills in the City of London by Category

For the 6 months to 6 March 2015, IT jobs across the City of London 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 15 (51.72%) MS Exchange
2 13 (44.83%) Lync
3 2 (6.90%) Exchange Server 2010
3 2 (6.90%) Exchange Server 2007
3 2 (6.90%) IIS
Applications
1 12 (41.38%) MS Excel
2 2 (6.90%) MS Project
Communications & Networking
1 15 (51.72%) LAN
1 15 (51.72%) WAN
1 15 (51.72%) Firewall
2 13 (44.83%) Wireless
3 12 (41.38%) Cisco ASA
4 11 (37.93%) MPLS
4 11 (37.93%) OSPF
4 11 (37.93%) BGP
5 8 (27.59%) TCP/IP
5 8 (27.59%) VPN
5 8 (27.59%) Unified Communications
6 7 (24.14%) PABX
7 6 (20.69%) Cisco Nexus
7 6 (20.69%) VLAN
7 6 (20.69%) Internet
7 6 (20.69%) Ethernet
8 5 (17.24%) PBX
8 5 (17.24%) NetScreen
8 5 (17.24%) DWDM
8 5 (17.24%) Multicast
General
1 6 (20.69%) Telecoms
1 6 (20.69%) Billing
2 4 (13.79%) Finance
Job Titles
1 14 (48.28%) Infrastructure Engineer
2 12 (41.38%) Support Engineer
2 12 (41.38%) 3rd Line Support
2 12 (41.38%) Infrastructure Support Engineer
3 5 (17.24%) Technical Engineer
3 5 (17.24%) Infrastructure Manager
3 5 (17.24%) Technical Support Engineer
3 5 (17.24%) Network Engineer
3 5 (17.24%) Technical Support
4 2 (6.90%) Infrastructure Project Manager
4 2 (6.90%) Project Manager
4 2 (6.90%) IT Manager
4 2 (6.90%) Team Leader
4 2 (6.90%) IT Project Manager
4 2 (6.90%) Technical Manager
4 2 (6.90%) Support Manager
4 2 (6.90%) Cisco Engineer
4 2 (6.90%) Network Team Leader
4 2 (6.90%) 3rd Line Support Manager
4 2 (6.90%) Infrastructure Support Manager
Miscellaneous
1 5 (17.24%) IVR
2 3 (10.34%) AVVID
3 2 (6.90%) SecurID
Operating Systems
1 4 (13.79%) Windows
2 2 (6.90%) Windows Server 2008
2 2 (6.90%) Windows 8
2 2 (6.90%) Windows Server 2012
3 1 (3.45%) Windows NT
3 1 (3.45%) UNIX
Processes & Methodologies
1 15 (51.72%) ITIL
2 9 (31.03%) Project Management
3 5 (17.24%) Capacity Planning
3 5 (17.24%) Network Monitoring
4 4 (13.79%) Load Balancing
5 2 (6.90%) Data Analysis
5 2 (6.90%) Kalman Filter
5 2 (6.90%) Line Management
5 2 (6.90%) Network Management
6 1 (3.45%) ITIL V3
6 1 (3.45%) E-Commerce
6 1 (3.45%) Service Delivery
6 1 (3.45%) Change Management
6 1 (3.45%) Migration
6 1 (3.45%) Agile Software Development
6 1 (3.45%) Network Design
Programming Languages
1 2 (6.90%) SQL
2 1 (3.45%) C
Qualifications
1 26 (89.66%) Cisco Certification
2 24 (82.76%) CCNP
3 23 (79.31%) CCNA
4 15 (51.72%) Microsoft Certification
5 13 (44.83%) JNCIA
5 13 (44.83%) MCSE
5 13 (44.83%) MCSA
6 2 (6.90%) CCSP
7 1 (3.45%) Avaya Certification
7 1 (3.45%) CCIE
7 1 (3.45%) CCDP
Quality Assurance & Compliance
1 6 (20.69%) SLA
System Software
1 15 (51.72%) Active Directory
2 12 (41.38%) VMware Infrastructure
3 2 (6.90%) XenApp
Systems Management
1 10 (34.48%) Cisco CUCM
2 5 (17.24%) CiscoWorks
2 5 (17.24%) SCOM
Vendors
1 20 (68.97%) Microsoft
2 15 (51.72%) Cisco
2 15 (51.72%) VMware
3 12 (41.38%) Juniper
4 5 (17.24%) CheckPoint
4 5 (17.24%) SolarWinds
4 5 (17.24%) Verint
5 4 (13.79%) Avaya
5 4 (13.79%) Blue Coat
6 3 (10.34%) IronPort
6 3 (10.34%) BT
7 2 (6.90%) Citrix
7 2 (6.90%) F5
7 2 (6.90%) Proofpoint
8 1 (3.45%) Aruba
8 1 (3.45%) ProCurve
8 1 (3.45%) Brocade
8 1 (3.45%) HP
8 1 (3.45%) 3Com