[SIPForum-discussion] Calling number in IAM

[Dasu B]

Hi,

CPN is optional parameter.Its all depend on switch end configuration,How
they want to send the CPN.

1. Mandatory Fixed
2.Mandatory Variable
3. Optional part.

CPN is not a mandatory parameter for Intial call setup(ISUP)..

Thanks
Dasu


On Mon, Jul 20, 2009 at 11:16 AM, Dasu B <dasu.eci at gmail.com> wrote:

> Its all depend on clien to client,If some client dont want to show there
> CPN then its hide on switch end.Anyway the call is terminating on DN basis.
> Thanks
> Dasu
>
> On Mon, Jul 20, 2009 at 7:22 AM, arvind shukla <
> arvind.shukla2007 at yahoo.co.in> wrote:
>
>>
>> Hi All,
>>
>> I just want to know that why calling number in not madatory in IAM message
>> of  ISUP.And if the calling no. is not mandatory than how other pary will
>> know calling's party number?
>>
>>
>> Thanks in advance.
>>
>> Arvind.
>>
>>
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