Customer Recognition of Foreign Tones - Telephone Network and ISDN - Operation, Numbering, Routing and Mobile Service (Study Group II) 2 pp
| Accuris | |
|---|---|
| Product Category | Standards and Technical Documents |
| Product Number | E.181 |
| Product Name | Customer Recognition of Foreign Tones - Telephone Network and ISDN - Operation, Numbering, Routing and Mobile Service (Study Group II) 2 pp |