3GPP TS 29.163

Martin C Dolly
Lead Member of Technical Staff
Core & Government/Regulatory Standards 
AT&T
Cell: 609-903-3360
Email: md3...@att.com

> On Jul 19, 2016, at 10:43 PM, Zuñiga, Guillermo 
> <guillermo.zun...@cwpanama.com> wrote:
> 
> 
> Thanks
> 
> C4 is the Class four control switch who is converting SS7 to SIP and 
> viceversa.
> 
> Regards
> Guillermo
> 
> 
> Guillermo Zuniga
> Especialista de Soporte Técnico
> Gerencia de Soporte Técnico
> Cable & Wireless Panama, S.A.
> Tel:    +507 263-6671
> Fax:    +507 265-3295
> Cel:    +507 6670-0481
> Email:  guillermo.zun...@cwpanama.com
> 
> ________________________________________
> From: Dale R. Worley [wor...@ariadne.com]
> Sent: Tuesday, July 19, 2016 9:19 PM
> To: Zuñiga, Guillermo
> Cc: discuss...@sipforum.org; sip-implementors@lists.cs.columbia.edu
> Subject: Re: [SIPForum-discussion] SIP to SS7 Calling Number Information
> 
> Zuñiga, Guillermo <guillermo.zun...@cwpanama.com> writes:
>> I would like to know where I can find information where is defined how
>> a C4 define the Calling Number Address information in a IAM, based on
>> the information come in a INVITE,
> 
>> What use a C4 when the INVITE have a FROM and a RPid Remote Party Id.,
> 
> What is a C4?
> 
> Dale
> 
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