isdn incorrect calling number display?

[samhopealpha]

Hi Everybody,

I tried to make a call from CUCM's IP Phone to my mobile phone through the VG's T1

I have started the "debug isdn q931", and see

Calling Party Number is 3555 7000,

Called Party Number is 6699 4488 (my mobile)

Howevery, my mobile shows the Caller Display is "3555 7100" , I suppose it should be "35557000" ....

What else could make this happen? is it because the Telecom has wrongly converted my Calling Number? or there is any conflict in CUCM?

Here is the result of debug q931

===============================================================================

ISDN Se0/0/1:23 Q931: Tx -> SETUP pd = 8 callref = 0x000B

    Bearer Capability i = 0x8090A2

        Standard = CCITT

        Transfer Capability = Speech

        Transfer Mode = Circuit

        Transfer Rate = 64 kbit/s

    Cannel ID i = 0xA98397

        Exclusive, Channel 23

    Calling Party Number i = 0x0081, '35557000'

        Plan:Unknown, Type:Unknown

    Called Party Number i = 0x80, '66994488'

        Plan:Unknown, Type:Unknown

ISDN Se0/0/1:23 Q931: Rx <- SETUP_ACK pd = 8 callref = 0x800B

    Channel ID i = 0xA98397

        Exclusive, Channel 23

ISDN Se0/0/1:23 Q931: Rx <- CALL_PROC pd = 8 callref = 0x800B

    Progress Ind i = 0x8288 - In-band info or appropriate now available

ISDN Se0/0/1:23 Q931: Rx <- ALERTING pd = 8 callref = 0x800B

    Progress Ind i = 0x8281 - Call not end-to-end ISDN, may have in-band info

    Progress Ind i = 0x8288 - In-band info or appropriate now available

ISDN Se0/0/1:23 Q931: Rx <- CONNECT pd = 8 callref = 0x800B

    Progress Ind i = 0x8281 - Call not end-to-end ISDN, may have in-band info

ISDN Se0/0/1:23 Q931: Tx -> CONNECT_ACK pd = 8 callref = 0x000B

===============================================================================

Thanks in advance
Sam

[Jaime Valencia · Accepted solution]

This is the info you're sending:

    Calling Party  Number i = 0x0081, '35557000'

        Plan:Unknown, Type:Unknown

If you see something else on the called phone it's because someone in the middle is overwriting that info.

Get in touch with Telco for this matter, if those are DIDs, do you own 7000??? Telcos do this if you do not own the DID and use the main DID number of what you do own.

HTH

java

if this helps, please rate

www.cisco.com/go/pdihelpdesk

[samhopealpha]

Thanks for the reply, I think  I have to contact with Telco on tomorrow...

Let see what's happening

[acampbell]

Sam,

Is 3555 7100 your ISDN service billing number ?

Here in the UK we have to pay the TELCO to allow

the DDInumber to go out instead of the billing number.

Regards,
Alex.
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