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Cisco Bug: CSCuq57243 - MME does E-RAB release at the end of CS HO.

Last Modified

Dec 25, 2016

Products (1)

  • Cisco ASR 5000 Series

Known Affected Releases

16.2.0

Description (partial) 

Symptom:
MME does E-RAB release at the end of CS HO

Conditions:
In a SRVCC call flow from 4G to 3G with CS only, MME does a E-RAB release at the end of CS HO, instead of UE context release. Some  eNodeBs will not be able to send the DEACTIVATE_BEARER_REQ to UE, when they encounter this E-RAB release in this scenario (as its in transisition to from E-UTRAN to UTRAN)
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