It can be achieved by different option. You can use translations, you can make use of external phone number mask etc..
Just by a piece of translation rule 10 and 20 its will be difficult for us to support you. Could you please share your gateway configurations to understand what translation you applied when dialling out.
Are you using any external phone number mask or any kind of translation on CUCM ? looks like your translation rule on gateway is not getting hit .
Can you make sure the CUCM is sending calling informations as 4digit to gateway as mentioned in the translation rule 20. If not it won't hit the rule 20.
debug ccap inout will give more informations. and try to do DNA from CUCM.
Also make sure you sending right numbers to your ISP.
debug isdn q931,will give you details of the caller information sending to ISP.
if calling information which you sending doesn’t belong to your DID block, isp will translate it to the pilot number or block the call for billing purpose.
The outgoing call will be based on the called information and it match the destination pattern on the dial-peer.
Your setting the use of the translation on the voice port. This happens after the dial peer is matched.
As others had said please post the output from debug isdn q931. If you could provide this for both an outbound and inbound call it would be helpful.
If you have not made any changes and the issue started all of a sudden then it's very likely that the root cause of your issue is with your service provider for the PSTN service.
Asper your incoming translation rule, I assume ISP is sending you 4 digit. 212759XX is this your Correct DID Block ? What If you sending calling informations as 59XX. Try to send only 4 digit as calling informations by making below changes on your translation rule and see the behaviour.
voice translation-rule 20
rule 1 /1200/ /5900/
rule 3 /1201/ /5905/
rule 4 /1210/ /5910/
Debug isdn q931 will give you more details about what you are sending to ISP. Please share the outputs of debugs.
Apart from the actual question at hand for showing the correct ANI to the caller for outbound calls I would urge you to re-work your dial peers towards the CM as you don't need to have individual per directory number. You can use the below to collapse all your voip dial peers into one and keep all you directory number information in one place in a voice class e164-pattern-map.
voice class e164-pattern-map 1 description Pattern Map for called number to CUCM e164 1200 e164 1201 e164 1210 !Continue this for all your destination patterns in the current voip dial peers ! dial-peer voice 10 voip description *** Outbound dial peer towards CM *** destination e164-pattern-map 1 session target ipv4:192.168.88.3 voice-class codec 1 dtmf-relay rtp-nte no vad
Don't fixate on the name of the voice class being something to do with E.164, it's just a name for the function. You can put any type a numbers into the list. For more and deeper information on this please see this great document. In Depth Explanation of Cisco IOS and IOS-XE Call Routing - Cisco
