[cisco-voip] I can't make a call by back to back E&M

서영석 sehsys at innet.co.kr
Sun Jun 8 21:54:39 EDT 2008


I have to make a call between VoiceGateway (Cisco Routers)

So, I am testing E&M interface. But I can’t make a call between Routers.

 

 

Legacy phone A <-------> Router A <--------> Router B <-------> Legacy phone B

                    FXS              E&M               FXS

 

Legacy Phone A : 3333

Legacy Phone B : 4444

 

Router A :

FXS - 1/0/0

E&M - 1/1/1

 

Router B :

FXS - 0/2/0

E&M - 0/3/0

 

< Router A dial-peer >

voice-port 1/1/0

 operation 4-wire

 type 5

 

dial-peer voice 101 pots

 destination-pattern 3333

 port 1/0/0

!

dial-peer voice 100 pots

 destination-pattern 4444

 port 1/1/1

 

 

< Router B dial-peer >

voice-port 0/3/0

 operation 4-wire

 type 5

 

dial-peer voice 101 pots

 destination-pattern 4444

 port 0/2/0

!

dial-peer voice 100 pots

 destination-pattern 3333

 port 0/3/0

 

 

< Router A voice port >

A#show voice port sum

IN       OUT

PORT CH  SIG-TYPE   ADMIN OPER STATUS  STATUS   EC

====== == =========== ============ ======== ======== ======== 

1/0/0     --  fxs-ls      up    dorm on-hook  idle     y

1/1/1     --  e&m-wnk     up    up   seized   idle     y

 

 

< Router C voice port >

C#show voice port sum

IN       OUT

PORT CH  SIG-TYPE   ADMIN OPER STATUS  STATUS   EC

====== == =========== ============ ======== ======== ======== 

0/2/0  --  fxs-ls        up    dorm on-hook   idle     y

0/3/0  --  e&m-wnk    up     up   seized    idle     y

 

 

< Cable Pinouts >

A  -->  B

1  -->  4

2  -->  5

3  -->  3

4  -->  1

5  -->  2

6  -->  6

7  -->  7

8  -->  8

 

How can I make a call between Routers??

 

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