
PROPRIETARY & CONFIDENTIAL
7 Configuration
The geo-redundant CUCM SIP Trunking lab network is illustrated in the figure below. The CUCM PBX at
each site is assumed to be identically configured to carry the full call load in the event of a network failure
at either location.
MODE
STACK
SPEED
DUPLX
STAT
MASTR
RPS
SYST
Catalyst 3750
SERIES
1
2
3
4
5
6
7
8
9
10
1X
2X
15X
16X
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
17X
18X
31X
32X
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
33X
34X
47X
48X
43
44
45
46
47
48
2 4
1 3
S
I
P
S
I
P
MODE
STACK
SPEED
DUPLX
STAT
MASTR
RPS
SYST
Catalyst 3750
SERIES
1
2
3
4
5
6
7
8
9
10
1X
2X
15X
16X
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
17X
18X
31X
32X
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
33X
34X
47X
48X
43
44
45
46
47
48
2 4
1 3
Figure 4 – Geo-Redundant CUCM Network
7.1 CUCM SIP Trunk Call Flows
Figure 5 – Originating Call Flow Overview
Page 9 of 71
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