O

o

M: mandatory. O: optional.

Table 10.3-4 Information elements in Q.931 call-control messages in the direction network user.

M: mandatory. O: optional.

Table 10.3-4 Information elements in Q.931 call-control messages in the direction network user.

Message Acronym

ACCCDI PRRSS LAOOI NRLLEE ELNNS FOS CTT R P NACOGEOUA Reference T R C MPC

Number Information Element CK K

IE.l Bearer capability M

IE.2 Called party number M

IE.3 Calling party number O

IE.4 Called party subaddress O

IE.5 Calling party subaddress O

IE.7 Channel identification O MM

IE.8 High-layer compatibility O

IE.10 Low-layer compatibility O

IE. 11 Progress indicator O O M O O

IE. 12 Signal M OOOOOOOMO

IE. 14 User-user information O O O O O O

M: mandatory. O: optional.

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