Toll free numbers in India failing

[evangaever]

On a voicegateway in India, calls to toll free numbers are failing. Although the the telephone number in the debug is correct, I'm getting an "Unallocated/unassigned number" error from the telco.  I'm running software c2900-universalk9-mz.SPA.150-1.M3.bin on the voicegateway CUCM 7.1.5.

Don't have issues with calls to normal numbers (landline, mobile).

*Jan 18 08:25:26.816: ISDN Se0/0/0:15 Q931: Applying typeplan for sw-type 0x12 is 0x2 0x1, Calling num 041000001
*Jan 18 08:25:26.816: ISDN Se0/0/0:15 Q931: Sending SETUP  callref = 0x6A63 callID = 0xE9E4 switch = primary-net5 interface = User
*Jan 18 08:25:26.816: ISDN Se0/0/0:15 Q931: TX -> SETUP pd = 8  callref = 0x6A63
        Bearer Capability i = 0x8090A3
                Standard = CCITT
                Transfer Capability = Speech 
                Transfer Mode = Circuit
                Transfer Rate = 64 kbit/s
        Channel ID i = 0xA9839F
                Exclusive, Channel 31
        Progress Ind i = 0x8181 - Call not end-to-end ISDN, may have in-band info 
        Calling Party Number i = 0x2181, '041000001'
                Plan:ISDN, Type:National
        Called Party Number i = 0xA1, '18001801407'
                Plan:ISDN, Type:National
*Jan 18 08:25:26.864: ISDN Se0/0/0:15 Q931: RX <- SETUP_ACK pd = 8  callref = 0xEA63
        Channel ID i = 0xA9839F
                Exclusive, Channel 31
*Jan 18 08:25:27.560: ISDN Se0/0/0:15 Q931: RX <- DISCONNECT pd = 8  callref = 0xEA63
        Cause i = 0x8A81 - Unallocated/unassigned number
        Progress Ind i = 0x8288 - In-band info or appropriate now available 
        Progress Ind i = 0x8282 - Destination address is non-ISDN
*Jan 18 08:25:27.560: ISDN Se0/0/0:15 Q931: call_disc: PI received in disconnect; Postpone sending RELEASE for callid 0xE9E4
*Jan 18 08:25:27.696: ISDN Se0/0/0:15 Q931: TX -> RELEASE pd = 8  callref = 0x6A63
*Jan 18 08:25:27.716: ISDN Se0/0/0:15 Q931: RX <- RELEASE_COMP pd = 8  callref = 0xEA63

interface Serial0/0/0:15
no ip address
encapsulation hdlc
isdn switch-type primary-net5
isdn overlap-receiving
isdn incoming-voice voice
isdn map address . plan isdn type national
no cdp enable

[Leonardo Santana]

if you are send the correct digits to the Telco i suggest you contact them to help you.

Thanks

[paolo bevilacqua]

        Called Party Number i = 0xA1, '18001801407'

All the known India toll free numbers have 6 digits after 1800, but the one above has 7.

Are you sure the number is correct ?

[evangaever]

Some of them do have 7 digits as the one above from Air India/Indian Airlines

[acampbell · Accepted solution]

Hi,

I notice that your outgoing call is sending a type of number TON to
the service provider as NATIONAL fot this call.

Called Party Number i = 0xA1, '18001801407'
                Plan:ISDN, Type:National

This may not be correct for this type of call

Can to add this piece of config below just to test

!
!
voice translation-rule 1800
rule 1 /^18/ /18/ type national unknown
!
!
!
voice translation-profile TEST-TOLL-FREE
translate called 1800
!
voice-port 0/0/0:15
translation-profile outgoing TEST-TOLL-FREE
!
!

To remove

!
voice-port 0/0/0:15
no translation-profile outgoing TEST-TOLL-FREE
!
no voice translation-profile TEST-TOLL-FREE
!
no voice translation-rule 1800
!

Try it just see if it makes a difference.

Regards
Alex

[evangaever]

After changing the config as proposed and removing isdn map address . plan isdn type national under interface Serial0/0/0:15 looks like its working.

[paolo bevilacqua]

On their website, Air India specifies that the number is tool free only from two telcos lines.

Can you try with a 6 digits number ?

[tany78007]

The Cause code "Cause i = 0x8A81" can be broken down to:-

"8A" (Cause Code Origination Point) --- a network beyond the internetworking point.

"81" (Disconnect Cause Code) -- The switch receives the ISDN number in the correct format. However, the number does not belong to destination equipment.

Try sending all calls as Type and Plan "Unkown" and let the telco decide how to route the call.This can help in international and 11 digit dialing being done here.