Integrated Service Digital Network (ISDN)
England > London
The table below provides summary statistics for permanent job vacancies advertised in London requiring ISDN skills. It includes a benchmarking guide to the annual salaries offered in vacancies that cited ISDN over the 6 months leading up to 17 May 2025, comparing them to the same period in the previous two years.
| 6 months to 17 May 2025 |
Same period 2024 | Same period 2023 | |
|---|---|---|---|
| Rank | 385 | 497 | 613 |
| Rank change year-on-year | +112 | +116 | +259 |
| Permanent jobs citing ISDN | 5 | 4 | 9 |
| As % of all permanent jobs advertised in London | 0.039% | 0.017% | 0.027% |
| As % of the Communications & Networking category | 0.27% | 0.12% | 0.23% |
| Number of salaries quoted | 5 | 3 | 4 |
| 10th Percentile | - | £55,400 | - |
| 25th Percentile | £92,500 | £60,875 | £62,500 |
| Median annual salary (50th Percentile) | £95,000 | £70,000 | £87,500 |
| Median % change year-on-year | +35.71% | -20.00% | +13.64% |
| 75th Percentile | £97,500 | - | £110,000 |
| 90th Percentile | - | - | - |
| England median annual salary | £95,000 | £70,000 | £49,500 |
| % change year-on-year | +35.71% | +41.41% | +10.00% |
All Communications and Computer Networking Skills
London
ISDN falls under the Communications and Computer Networking category. For comparison with the information above, the following table provides summary statistics for all permanent job vacancies requiring communications or computer networking skills in London.
| Permanent vacancies with a requirement for communications or computer networking skills | 1,820 | 3,261 | 3,962 |
| As % of all permanent jobs advertised in London | 14.07% | 13.78% | 11.76% |
| Number of salaries quoted | 944 | 2,004 | 2,715 |
| 10th Percentile | £33,825 | £32,825 | £32,750 |
| 25th Percentile | £45,000 | £42,500 | £42,631 |
| Median annual salary (50th Percentile) | £65,000 | £60,000 | £62,500 |
| Median % change year-on-year | +8.33% | -4.00% | +3.64% |
| 75th Percentile | £85,250 | £77,500 | £82,548 |
| 90th Percentile | £105,000 | £95,000 | £100,000 |
| England median annual salary | £47,500 | £47,500 | £50,000 |
| % change year-on-year | - | -5.00% | -4.76% |
ISDN
Job Vacancy Trend in London
Job postings citing ISDN as a proportion of all IT jobs advertised in London.
ISDN
Salary Trend in London
3-month moving average salary quoted in jobs citing ISDN in London.
ISDN
Job Locations in London
The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing ISDN within the London region over the 6 months to 17 May 2025. The 'Rank Change' column provides an indication of the change in demand within each location based on the same 6 month period last year.
| Location | Rank Change on Same Period Last Year |
Matching Permanent IT Job Ads |
Median Salary Past 6 Months |
Median Salary % Change on Same Period Last Year |
Live Jobs |
|---|---|---|---|---|---|
| Central London | +36 | 1 | £95,000 | +77.57% | |
| ISDN England |
|||||
ISDN
Co-occurring Skills and Capabilities in London by Category
The follow tables expand on the table above by listing co-occurrences grouped by category. The same employment type, locality and period is covered with up to 20 co-occurrences shown in each of the following categories:
|
|
||||||||||||||||||||||||||||||
|
|
||||||||||||||||||||||||||||||
|
|
||||||||||||||||||||||||||||||
|
|||||||||||||||||||||||||||||||