[cisco-voip] prefix access code 0 in ccm service parameter upsetting unity VM

[FrogOnDSCP46EF]

I have got a production ccm-v6 and when I prefix 0 for missed calls in ccm
service parameter it works fine. the phones are able to prepend '0'/access
code and dial missed call directly.
The problem is when call coming from PSTN to a DN and DN doesn't answer then
it goes to VM - that also work but the problem is when the DN checks
voicemail - the Cisco lady speaks out "Message received from "0"+8 digit
local number blah".
Is there in Unity or Unity connection some parameter which makes cisco lady
to speak only 8 digit ANI and not the prepended '0' (ccm service parameter)?

I have found this a normal behaviour but just want to know if there is any
option to fix this.
i've tried putting ANI xxxxxxxx on Hunt pilot but it is not accepteble
solution as there are mobile 10 digit and national 11 digits numbers too.

however, if i remove my pstn access code from ccm service parameter and then
pstn user calls to a DN >goes to VM > then it's all working as expected
(e.g. cisco lady only speaks out 8 digit local DN).

any idea?

-- 
Smile, you'll save someone else's day!
Frog
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