Call Flows - Debugging

 LTE attach..

Call Scenarios -

1. S1AP/SCTP -

a. S1 Setup

b. eNB Configuration Update

c. MME configuration Update

d. Shutdown

e. Heartbeat

2. NAS -

a. Attach request/PDN Connectivity request

3. S11

a. Create session Request/response

b. Modify bearer request/response

c. Delete session request/response

4. S6a

a. Authentication info request/answer

b. Update Location request/answer

c. Cancel location update request/answer

5. NAS

a. Authentication

b. ESM/APN

6. S5

a. Create session request/response

b. Modify bearer request/response

c. Delete session request/response

d. Downlink data notification ---- > we also

Cover Paging here.

7. NAS/SGs/CSFB

a. MO Voice Call - Incoming

b. MT Voice Call - Outgoing

8. SGW/PGW Selection in EPC using DNS

Call flows - S1AP - S1 setup

Wireshark logs:-