User guide

832N TELEKOMUNIKACE a.s., www.2n.cz
®
GSM Layer 3 Message Status
ID Name Description
0 NULL Rest status, ready for call
1 CINIT Request of call to GSM (from Layer 4)
3 OPROC Call to GSM is connected
4 CDELIV Call to GSM is ringing
6 CPRES Indication of call from GSM (from Layer 2)
7 CRECV Call from GSM is ringing on ISDN interface
9 IPROC Call from GSM is processed by ISDN interface
10 ACTIVE Connected call
11 DISREQ Disconnection request (to Layer 2)
12 DISIND Indication of disconnection (from Layer 2)
19 RELREQ Module release for another call (to Layer 2)
25 OVRECV Reading of DTMF dialling from GSM (from Layer 2)
38 RELIND Indication of module release (from Layer2)
Layer 4 Message Status
ID Name Description
0 NULL Rest status, ready for call
1 MORE
Call request received from GSM or ISDN, awaiting further dialling or
timeout
2 SETUP Call request sent to opposite interface
3 PROC Call request confirmed, awaiting call answer
4 ACTIVE Connected call
5 DISC Call disconnection in progress