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LTE: Why a separate default bearer is required to exchange SIP signalling messages between UE and IMS network ?

+2 votes

Is it mandatory to establish a separate default bearer to exchange IMS signaling messages between UE and IMS network nodes ? Can't internet default bearer be used for the same ?

posted Dec 20, 2016 by Vikram Singh

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2 Answers

+1 vote


Internet PDN is different and IMS PDN is different so we need different default bearer for the IMS connection.

answer Dec 20, 2016 by Jaganathan
+1 vote

Default bearer is per pdn not per UE so ims pdn is different and internet pdn is different so two default bearer is required.

answer Dec 21, 2016 by Rakesh Kumar Suman
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