7.7.108 Additional flags for SRVCC

29.0603GPPGeneral Packet Radio Service (GPRS)GPRS Tunnelling Protocol (GTP) across the Gn and Gp interfaceRelease 17TS

Additional flags for SRVCC is coded as specified in Figure 7.7.108-1.

Bits

Octets

8

7

6

5

4

3

2

1

1

Type = 208 (decimal)

2 to 3

Length = n

4

Spare

ICS

5 to (n+3)

These octet(s) is/are present only if explicitly specified

Figure 7.7.108-1: Additional flags for SRVCC

The following bits within Octet 4 indicate:

– Bit 1 – ICS (IMS Centralized Service): This flag indicates that UE supports ICS specific service as specified in 3GPP TS 23.292 [49].