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

3 months to
2 Dec 2016
Same period 2015 Same period 2014
Integrated Service Digital Network (ISDN)
Rank 225 263 309
Rank change year-on-year
+38 +46
Permanent jobs citing ISDN 5 6 21
As % of all permanent IT jobs located in the City of London 0.092% 0.086% 0.19%
As % of the Communications & Networking category 0.58% 0.58% 1.08%
Number of salaries quoted 2 6 21
Median salary £54,000 £55,000 £47,500
Median salary % change year-on-year
-1.81% +15.78%
90% offered a salary of more than £52,800 £53,750 £42,500
10% offered a salary of more than £55,200 £55,000 £70,500
UK excluding London median salary £42,500 £35,750 £39,500
% change year-on-year
+18.88% -9.49%
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
864 1028 1949
As % of all permanent IT jobs located in the City of London 15.94% 14.70% 17.48%
Number of salaries quoted 746 883 1704
Median salary £52,500 £50,000 £47,500
Median salary % change year-on-year
+5.00% +5.26%
90% offered a salary of more than £29,000 £29,000 £28,500
10% offered a salary of more than £77,500 £70,000 £77,500
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 2 December 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 15 (93.75%) Cisco
1 15 (93.75%) Cisco Certification
2 10 (62.50%) VoIP
3 8 (50.00%) TCP/IP
3 8 (50.00%) CCNP
3 8 (50.00%) CCNA
4 7 (43.75%) Juniper
4 7 (43.75%) VPN
4 7 (43.75%) ITIL
4 7 (43.75%) Firewall
4 7 (43.75%) Wireless
5 6 (37.50%) Network Security
5 6 (37.50%) XMPP
5 6 (37.50%) e-Health
5 6 (37.50%) Network Design
5 6 (37.50%) JNCIA
5 6 (37.50%) JNCIS
5 6 (37.50%) JNCIP
5 6 (37.50%) JNCIE
5 6 (37.50%) Law
5 6 (37.50%) Broadband
5 6 (37.50%) LAN
5 6 (37.50%) WAN
5 6 (37.50%) Video Conferencing
5 6 (37.50%) DV Cleared
5 6 (37.50%) Security Cleared
5 6 (37.50%) Network Monitoring
6 5 (31.25%) Cisco UCCE
6 5 (31.25%) Telecoms
6 5 (31.25%) Skype for Business

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 5 (31.25%) Skype for Business
2 1 (6.25%) Blackberry Enterprise Server
2 1 (6.25%) MS Exchange
Business Applications
1 2 (12.50%) Cisco SocialMiner
Communications & Networking
1 10 (62.50%) VoIP
2 8 (50.00%) TCP/IP
3 7 (43.75%) Firewall
3 7 (43.75%) VPN
3 7 (43.75%) Wireless
4 6 (37.50%) Broadband
4 6 (37.50%) LAN
4 6 (37.50%) Network Security
4 6 (37.50%) WAN
5 5 (31.25%) DHCP
5 5 (31.25%) DNS
5 5 (31.25%) LDAP
5 5 (31.25%) Skype
5 5 (31.25%) WebEx
6 2 (12.50%) Telepresence
6 2 (12.50%) Unified Communications
7 1 (6.25%) 3G
7 1 (6.25%) Cisco PIX
7 1 (6.25%) SSL
7 1 (6.25%) WLAN
General
1 6 (37.50%) Law
2 5 (31.25%) Telecoms
3 1 (6.25%) Legal
Job Titles
1 11 (68.75%) Analyst
2 7 (43.75%) Cisco Analyst
3 6 (37.50%) Cisco Network Analyst
3 6 (37.50%) Network Analyst
4 4 (25.00%) Telecoms Analyst
5 3 (18.75%) Consultant
5 3 (18.75%) Telecoms Consultant
6 2 (12.50%) Unified Communications Engineer
6 2 (12.50%) Voice Engineer
7 1 (6.25%) Cisco Consultant
7 1 (6.25%) Deskside Support
7 1 (6.25%) Infrastructure Support
7 1 (6.25%) IT Analyst
7 1 (6.25%) IT Support
7 1 (6.25%) Senior IT Support
7 1 (6.25%) Senior IT Support Analyst
7 1 (6.25%) Solutions Architect
7 1 (6.25%) Support Analyst
7 1 (6.25%) Support Engineer
7 1 (6.25%) Telephony Support
Libraries, Frameworks & Software Standards
1 6 (37.50%) XMPP
Miscellaneous
1 6 (37.50%) e-Health
1 6 (37.50%) Video Conferencing
2 2 (12.50%) Analytical Skills
3 1 (6.25%) Blackberry
3 1 (6.25%) Handset
3 1 (6.25%) Smartphone
Operating Systems
1 1 (6.25%) Windows
1 1 (6.25%) Windows 7
Processes & Methodologies
1 7 (43.75%) ITIL
2 6 (37.50%) Network Design
2 6 (37.50%) Network Monitoring
3 4 (25.00%) Capacity Planning
4 2 (12.50%) Project Management
5 1 (6.25%) Asset Management
5 1 (6.25%) Document Management
5 1 (6.25%) Incident Management
5 1 (6.25%) Mentoring
5 1 (6.25%) Trend Analysis
5 1 (6.25%) WFM
Qualifications
1 15 (93.75%) Cisco Certification
2 8 (50.00%) CCNA
2 8 (50.00%) CCNP
3 6 (37.50%) DV Cleared
3 6 (37.50%) JNCIA
3 6 (37.50%) JNCIE
3 6 (37.50%) JNCIP
3 6 (37.50%) JNCIS
3 6 (37.50%) Security Cleared
4 2 (12.50%) CCNP Voice
5 1 (6.25%) ITIL Certification
5 1 (6.25%) Microsoft Certification
Systems Management
1 5 (31.25%) Cisco UCCE
2 2 (12.50%) Cisco UCCX
3 1 (6.25%) TrustSec
Vendors
1 15 (93.75%) Cisco
2 7 (43.75%) Juniper
3 2 (12.50%) Red Box
4 1 (6.25%) AppSense
4 1 (6.25%) Avaya
4 1 (6.25%) CheckPoint
4 1 (6.25%) Citrix
4 1 (6.25%) Interwoven
4 1 (6.25%) IPFX
4 1 (6.25%) Microsoft
4 1 (6.25%) Nortel
4 1 (6.25%) Verint