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Cisco ATA 186 and Cisco ATA 188 Analog Telephone Adaptor Administrator’s Guide for MGCP (version 3.0)
OL-4803-01
Appendix C MGCP Call Flows
15. Cisco ATA 1 dials “6”—Cisco ATA 1 to Call Agent
NTFY 20 aaln/1@[192.168.2.45] MGCP 1.0
N: 192.168.3.76:2427
X: 29629
O: D/6
K: 19
16. OK—Call Agent to Cisco ATA 1
200 20 OK
17. Cisco ATA 2 phone rings and displays Cisco ATA 1 ID on CID
device—Call Agent to Cisco ATA 2
rqnt 57713 aaln/1@[192.168.3.33] MGCP 1.0
K: 57676
X: 10
S:
L/rg,L/ci(11/13/12/42,9723301011,ATA-2-45
-USER1)
18. OK—Cisco ATA 2 to Call Agent
200 57713 OK
19. Cisco ATA 1 gets ringback tone and dialed number and name
displayed on CID device—Call Agent to Cisco ATA 1
rqnt 57714 aaln/1@[192.168.2.45] MGCP 1.0
K: 57707
X: 29630
R: L/hu(N),L/hf(N),D/[0-9*#](N)
S:
G/rt,L/ci(11/13/12/42,9723301026,ATA-3-33
-USER1)
D: x
20. OK—Cisco ATA 1 to Call Agent
200 57714 OK
21. Cisco ATA 2 goes off-hook—Cisco ATA 2 to Call Agent
NTFY 18 aaln/1@[192.168.3.33] MGCP 1.0
N: 192.168.3.76:2427
X: 10
O: L/hd
K: 17
22. OK—Call Agent to Cisco ATA 2
200 18 OK
23. An inactive connection is created on Cisco ATA 2—Call Agent to
Cisco ATA 2
crcx 57722 aaln/1@[192.168.3.33] MGCP 1.0
K: 57713
C: 26962
X: 29640
N: 192.168.3.76:2427
L: p:10-20, a:PCMU;G729
M: inactive
24. OK—Cisco ATA to Call Agent
200 57722 OK
I: 0
v=0
c=IN IP4 192.168.3.33
m=audio 10000 RTP/AVP 18 0
25. Ringing stops on Cisco ATA 2—Call Agent to Cisco ATA 2
rqnt 57723 aaln/1@[192.168.3.33] MGCP 1.0
X: 29641
R: L/hu(N),L/hf(N),D/[0-9*#](N)
S:
D: x
26. OK—Cisco ATA 2 to Call Agent
200 57723 OK
Step Action Log