The following table provides summary statistics for permanent job vacancies advertised in the City of London with a requirement for PSTN skills. Included is a benchmarking guide to the salaries offered in vacancies that have cited PSTN over the 3 months to 26 June 2017 with a comparison to the same period in the previous 2 years.

Public Switched Telecom Network (PSTN)
London / City of London
3 months to
26 Jun 2017
Same period 2016 Same period 2015
Rank 233 259 309
Rank change year-on-year +26 +50  
Permanent jobs citing PSTN 1 1 3
As % of all permanent IT jobs advertised in the City of London 0.019% 0.016% 0.029%
As % of the Communications & Networking category 0.12% 0.096% 0.20%
Number of salaries quoted 1 1 3
Median salary £59,000 £55,000 £52,500
Median salary % change year-on-year +7.27% +4.76%  
UK excluding London median salary £35,000 £38,250 £26,500
% change year-on-year -8.49% +44.33%  

PSTN is in the communications and computer networking skills category. The next table is for comparison with the above and provides summary statistics for all permanent job vacancies advertised in the City of London with a requirement for communications and computer networking skills.

Communications & Computer Network Skills
City of London
Permanent job vacancies with a requirement for communications and computer networking skills 847 1038 1517
As % of all permanent IT job vacancies advertised in the City of London 16.17% 16.51% 14.68%
Number of salaries quoted 743 908 1315
Median salary £55,000 £55,000 £55,000
90% offered a salary of more than £29,000 £33,000 £32,500
10% offered a salary of more than £75,000 £75,000 £70,000
UK excluding London median salary £42,500 £42,500 £42,000
% change year-on-year - +1.19%  

PSTN
Job Vacancy Trend in the City of London

The job posting trend of jobs advertised in the City of London citing PSTN as a proportion of all permanent or contract IT jobs with a match in the Communications & Networking category.

Job vacancy trend for PSTN in the City of London

PSTN
Salary Trend in the City of London

This chart provides the 3-month moving average for salaries quoted in permanent IT jobs citing PSTN in the City of London.

Salary trend for PSTN in the City of London

For the 6 months to 26 June 2017, IT jobs citing PSTN 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 PSTN.

1 1 (100.00%) C
1 1 (100.00%) Microsoft Office
1 1 (100.00%) IBM Notes
1 1 (100.00%) MCSE
1 1 (100.00%) MS Exchange
1 1 (100.00%) PBX
1 1 (100.00%) VoIP
1 1 (100.00%) Cisco
1 1 (100.00%) Microsoft
1 1 (100.00%) Active Directory
1 1 (100.00%) Microsoft Certification
1 1 (100.00%) Lotus
1 1 (100.00%) Migration
1 1 (100.00%) XMPP
1 1 (100.00%) MCITP
1 1 (100.00%) Network Security
1 1 (100.00%) Video Conferencing
1 1 (100.00%) Skype for Business
1 1 (100.00%) Unified Communications
1 1 (100.00%) Office 365
1 1 (100.00%) Software-Defined Networking
1 1 (100.00%) Skype
1 1 (100.00%) Presales
1 1 (100.00%) Customer Requirements
1 1 (100.00%) Digital Signage

PSTN
Co-occurring 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 1 (100.00%) IBM Notes
1 1 (100.00%) MS Exchange
1 1 (100.00%) Skype for Business
Applications
1 1 (100.00%) Microsoft Office
Cloud Services
1 1 (100.00%) Office 365
Communications & Networking
1 1 (100.00%) Network Security
1 1 (100.00%) PBX
1 1 (100.00%) Skype
1 1 (100.00%) Software-Defined Networking
1 1 (100.00%) Unified Communications
1 1 (100.00%) VoIP
Job Titles
1 1 (100.00%) Consultant
1 1 (100.00%) Lync Consultant
1 1 (100.00%) Unified Communications Consultant
Libraries, Frameworks & Software Standards
1 1 (100.00%) XMPP
Miscellaneous
1 1 (100.00%) Digital Signage
1 1 (100.00%) Video Conferencing
Processes & Methodologies
1 1 (100.00%) Customer Requirements
1 1 (100.00%) Migration
1 1 (100.00%) Presales
Programming Languages
1 1 (100.00%) C
Qualifications
1 1 (100.00%) MCITP
1 1 (100.00%) MCSE
1 1 (100.00%) Microsoft Certification
System Software
1 1 (100.00%) Active Directory
Vendors
1 1 (100.00%) Cisco
1 1 (100.00%) Lotus
1 1 (100.00%) Microsoft