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PSTN call disconnect cause 31 - Normal, unspecified

Hi Everybody,

 

Now i am using VG2901 version 15.2(2)T

We are using E1 curcuit to connect the PSTN 

show isdn status 

Layer 1 is active 

Layer 2 is MULTIPLE_FRAME_ESTABLISHED

 

When I tried to dial the local number 28881000,  it seems cannot establish the call successfully... and drop call 

 

Here is the debug q931 output

 

Mar 17 10:09:31.863: ISDN Se0/0/0:15 Q931: Applying typeplan for sw-type 0x12 is 0x0 0x0, Calling num 1234
Mar 17 10:09:31.863: ISDN Se0/0/0:15 Q931: Sending SETUP  callref = 0x00A0 callID = 0x8021 switch = primary-net5 interface = User 
Mar 17 10:09:31.863: ISDN Se0/0/0:15 Q931: TX -> SETUP pd = 8  callref = 0x00A0 
    Sending Complete 
    Bearer Capability i = 0x8090A3 
        Standard = CCITT 
        Transfer Capability = Speech  
        Transfer Mode = Circuit 
        Transfer Rate = 64 kbit/s 
    Channel ID i = 0xA9839F 
        Exclusive, Channel 31 
    Calling Party Number i = 0x0081, '1234' 
        Plan:Unknown, Type:Unknown 
    Called Party Number i = 0x80, '28881000' 
        Plan:Unknown, Type:Unknown
Mar 17 10:09:31.883: ISDN Se0/0/0:15 Q931: RX <- RELEASE_COMP pd = 8  callref = 0x80A0 
    Cause i = 0x829F - Normal, unspecified

 

and debug voice ccapi inout, and found out that

cc_api_call_disconnected:
   Cause Value=31

 

 

Anybody knows what is going on here?

Thanks 

Sam

 

Everyone's tags (1)
1 ACCEPTED SOLUTION

Accepted Solutions
Bronze

Hi SamThe first question

Hi Sam

The first question which comes to my mind is: Does the provider allow "local dialing"?
To find out what pattern is expected by the provider I usually do this.

1.    Turn on “debug isdn q931”
2.    Call in from the number in question (In this case “28881000”)
3.    Turn off debugging
4.    Check what pattern the provider is sending
5.    Also check the “Plan” and “Type” right below the pattern
6.    Configure outgoing numbers to use the same pattern, plan and type like the provider.

Hope that helps you a little
Cheers
slashdots

 

1 REPLY
Bronze

Hi SamThe first question

Hi Sam

The first question which comes to my mind is: Does the provider allow "local dialing"?
To find out what pattern is expected by the provider I usually do this.

1.    Turn on “debug isdn q931”
2.    Call in from the number in question (In this case “28881000”)
3.    Turn off debugging
4.    Check what pattern the provider is sending
5.    Also check the “Plan” and “Type” right below the pattern
6.    Configure outgoing numbers to use the same pattern, plan and type like the provider.

Hope that helps you a little
Cheers
slashdots

 

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