Understand the flow of appeal through VCS c/e

Hey Geeks,

I write this to understand "how to work things. Here's the design.

I have a VCSC configured with the name of the domain example.com SIP (we have internal DNS server to resolve)

I have a VCSe configured with the name of the cisco.com SIP domain (we have external DNS server to make globally routable)

I create a link bw VCSC and VCSe course.

How the call will flow between the Ep A and B Ep

Scenario a.

My Ep A is [email protected] / * / dials Ep B Jabber client (user) recorded on VCSe [email protected] / * /

How call flows; I understand that the flow of the beginning IE Ex 90 will send a register message to VCSC etc etc.

Scenario B:

If Ep A [email protected] / * / call a 3rd party (distinct) = (inter appeal cases) End point ie [email protected] / * /

How runs the call.

Please excuse me for asking layman explanation:

Thanks in advance

Vikram

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Hi Vikram,

First thing to note is in most of the customer scenario prefer same sip domain on highways and control so that they can avoid transform and simplify the numbering plan.

Happens to your scenario.

Scenario a.

EP A VCS-contrl<--traversal-->VCS - Ex <--SIP--><--sip-->Ep B (points of termination assumptions made using the SIP protocol)

EP began with the sending of a guest for VCS-cntrol SIP message, which gets transmitted to VCS - by VCS-cntrl exp, hope you're installation rules research properly on vcs control.

VCS - exp send this appeal to Ep B and call connect. You can google for SIP call flow, so nothing different happens in this case.

Scenario B

EP A VCS-cntrl<--traversal-->VCS - Exp<-->public cloud<--SIP--><-->Ep B (dell.com)

A DNS zone, which uses the dns configured on exp do query srv records to the external field like "dell.com" is now required to apply for external part VCS - exp

in this scenario again Ep began with the sending of a message to the VCS-cntrl invitation gets sent to the SCV - exp rules-based research. VCS - exp begins looking for new address based on the rule of the research and since it does not find the URI ending with exp and "dell.com" starts to send query record srv for the domain "dell.com". DNS configured on exp in the SRV company A sends question and get an answer for this domain with the company B VCS - exp - ip address, and then vcs - exp in company A starting configuration of the call to the remote ip address.

now in the present, you can have several scenarios and I recommend you consult the guide deployment for VCS-control and traversal solution VCS - exp.

Rgds,

Alok

Tags: Cisco Support

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