Statements (20)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
gptkb:smartphone
|
| gptkbp:category |
value-added service
|
| https://www.w3.org/2000/01/rdf-schema#label |
Supplementary Services
|
| gptkbp:provides |
call forwarding
call hold call transfer conference calling call waiting caller identification call barring |
| gptkbp:relatedTo |
gptkb:GSM
mobile networks telephony |
| gptkbp:standardizedBy |
gptkb:3GPP
gptkb:ITU-T |
| gptkbp:usedIn |
gptkb:public_switched_telephone_network
gptkb:ISDN mobile telephony |
| gptkbp:bfsParent |
gptkb:GSM_mobile_communications
|
| gptkbp:bfsLayer |
7
|