Advanced Telephone Systems
| Business category 1 | PBX |
| City ( of main office ) | London, GB, United Kingdom |
| Phones | 44-01582-767799 |
| Date | 2011 Oct 29, 10:10 |
| Business category 1 | PBX |
| City ( of main office ) | London, GB, United Kingdom |
| Phones | 44-01582-767799 |
| Date | 2011 Oct 29, 10:10 |