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New Member

IOS 15.1 POTS dial-peer problem

Good day!
After updating to IOS version 15.1(4)M6 there is  a problem with outgoing calls through the PRI.

Router configuration in the attach. On the gateway turned on debugs:

sho debugging

The following ISDN debugs are enabled on all DSLs:debug isdn error is ON.
debug isdn q931 is ON. (filter is OFF)
DIALPEER:
debug voip dialpeer error call is ON (filter is OFF)
debug voip dialpeer error informational call is ON (filter is OFF)
debug voip dialpeer error software is ON
debug voip dialpeer error software is ON informational
debug voip dialpeer function is ON (filter is OFF)
debug voip dialpeer inout is ON (filter is OFF)
debug  voip dialpeer detail is ON (filter is OFF).
The result of debug also in attach.
On CUCM 9.1 configured SIP trunk to this gateway. When I  call the test number 89261234567 I hear a busy signal. If I upload this  version 12.2(24)T6, with exactly the same configuration, everything  works successfully. Accordingly some problem lies precisely in the new  IOS. Please tell me to what may be the case.

Thank you!

  • IP Telephony
Everyone's tags (4)
2 ACCEPTED SOLUTIONS

Accepted Solutions
VIP Super Bronze

IOS 15.1 POTS dial-peer problem

You may be experiencing the Toll fraud prevention...

Can you please send debug voip ccapi inout..

Please rate all useful posts

"The essence of christianity is not the enthronement but the obliteration of self --William Barclay"

Please rate all useful posts "The essence of christianity is not the enthronement but the obliteration of self --William Barclay"

IOS 15.1 POTS dial-peer problem

Hi Filipp,

As Deji correctly guessed, the call is disconnected because of the Toll Fraud prevention.

*Feb  4 15:35:26 MSK: //1/6FAB58800001/CCAPI/cc_process_call_setup_ind:

   >>>>CCAPI handed cid 1 with tag 101 to app "_ManagedAppProcess_TOLLFRAUD_APP"

*Feb  4 15:35:26 MSK: //1/6FAB58800001/CCAPI/ccCallDisconnect:

   Cause Value=21, Tag=0x0, Call Entry(Previous Disconnect Cause=0, Disconnect Cause=0)

you can add the IP addresses of CCM servers from where the calls are originated under

voice service voip

  ip address trusted list

URL for your reference: https://supportforums.cisco.com/docs/DOC-12228

Please rate all the useful posts

//Suresh Please rate all the useful posts.
4 REPLIES
VIP Super Bronze

IOS 15.1 POTS dial-peer problem

You may be experiencing the Toll fraud prevention...

Can you please send debug voip ccapi inout..

Please rate all useful posts

"The essence of christianity is not the enthronement but the obliteration of self --William Barclay"

Please rate all useful posts "The essence of christianity is not the enthronement but the obliteration of self --William Barclay"
New Member

Re: IOS 15.1 POTS dial-peer problem

in attach..

IOS 15.1 POTS dial-peer problem

Hi Filipp,

As Deji correctly guessed, the call is disconnected because of the Toll Fraud prevention.

*Feb  4 15:35:26 MSK: //1/6FAB58800001/CCAPI/cc_process_call_setup_ind:

   >>>>CCAPI handed cid 1 with tag 101 to app "_ManagedAppProcess_TOLLFRAUD_APP"

*Feb  4 15:35:26 MSK: //1/6FAB58800001/CCAPI/ccCallDisconnect:

   Cause Value=21, Tag=0x0, Call Entry(Previous Disconnect Cause=0, Disconnect Cause=0)

you can add the IP addresses of CCM servers from where the calls are originated under

voice service voip

  ip address trusted list

URL for your reference: https://supportforums.cisco.com/docs/DOC-12228

Please rate all the useful posts

//Suresh Please rate all the useful posts.
New Member

Re: IOS 15.1 POTS dial-peer problem

Thank you very much! The problem is solved! ))

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