fxo port not showing caller id on h323 gateway

we have in our production network H323 gateway connected to 2 FXO ports. Caller id is enabled on both ports and service provider also sends the caller id but we see no caller id on phones when someone calls from PSTN
bapijosephAsked:
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ajkhalifaCommented:
from which country you are?
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lrmooreCommented:
this document has some good troubleshooting guide
http://www.cisco.com/application/pdf/paws/23444/callerid_name_del.pdf
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bapijosephAuthor Commented:
Dear ajkhalifa

 The configuration is done in Bahrain and also under voice port  I have put cptone= BH. However, later I found in the debug messages, the servic provider was  sending the caller id infact.
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ajkhalifaCommented:
the solution for your problem is the following:
voice-port x/x/x
 cptone BR
  caller-id alerting dsp-pre-allocate

the dsp should be pre-allocated for the caller id

waiting for good news.
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bapijosephAuthor Commented:
this configuration is there under the  voice port . The problem is that later found the service provider is not sending the caller id so bad after doing so much of debugs i found out. The above lines exist in my configuration. Anyway thanks once again for all your constant help
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bapijosephAuthor Commented:
the matter is solved with the service provider.
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