SRVCC
E523048
SRVCC (Single Radio Voice Call Continuity) is a mobile network feature that enables seamless handover of ongoing voice calls from LTE or VoLTE to legacy circuit-switched networks like 2G or 3G.
Statements (45)
| Predicate | Object |
|---|---|
| instanceOf |
mobile network feature
ⓘ
voice call continuity mechanism ⓘ |
| abbreviationOf | Single Radio Voice Call Continuity NERFINISHED ⓘ |
| appliesTo |
LTE networks with legacy 2G/3G coverage
ⓘ
mobile networks ⓘ |
| benefit |
maintains service continuity for VoLTE calls
ⓘ
prevents voice call drop during LTE to 2G/3G handover ⓘ |
| category |
handover procedure
ⓘ
voice service continuity ⓘ |
| contrastsWith | Dual Radio Voice Call Continuity NERFINISHED ⓘ |
| definedIn | 3GPP IMS and LTE specifications ⓘ |
| dependsOn | coverage of legacy 2G or 3G networks ⓘ |
| designedFor | LTE to legacy CS network interworking ⓘ |
| enables | seamless handover of ongoing voice calls ⓘ |
| ensures | continuity of emergency calls across LTE and CS networks ⓘ |
| fullName | Single Radio Voice Call Continuity NERFINISHED ⓘ |
| goal | ensure uninterrupted voice service across radio technologies ⓘ |
| involves |
coordination between LTE and CS core networks
ⓘ
handover of media and signaling ⓘ |
| objective | smooth migration from legacy CS voice to VoLTE ⓘ |
| operatesWith | single active radio interface in the UE ⓘ |
| primaryUseCase | voice call continuity during radio access change ⓘ |
| relatedConcept |
IMS Centralized Services
NERFINISHED
ⓘ
Voice Call Continuity ⓘ |
| relatedTo |
CSFB
NERFINISHED
ⓘ
VoLTE NERFINISHED ⓘ |
| requires |
IMS core network
ⓘ
SRVCC-capable MME NERFINISHED ⓘ SRVCC-capable MSC server ⓘ SRVCC-capable eNodeB NERFINISHED ⓘ |
| requiresSupportIn |
core network
ⓘ
radio access network ⓘ user equipment ⓘ |
| sourceDomain | packet-switched domain ⓘ |
| standardizedBy | 3GPP NERFINISHED ⓘ |
| supportsHandoverFrom |
LTE
NERFINISHED
ⓘ
VoLTE ⓘ |
| supportsHandoverTo |
2G circuit-switched network
ⓘ
3G circuit-switched network ⓘ |
| supportsService |
circuit-switched voice
ⓘ
supplementary voice services ⓘ |
| targetDomain | circuit-switched domain ⓘ |
| triggeredWhen | LTE coverage degrades during an ongoing voice call ⓘ |
| usedBy | mobile network operators deploying VoLTE ⓘ |
| uses | single radio transceiver in the UE ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.