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New Member

VCS & VCS-Express with CUCM integration




I have CUCM - > VCS - > VCS Express deployment. Some endpoints are registered to CUCM and others are registered to VCS.I have prepared the prerequisites, so please correct me if I am wrong.


  • Private IP Address, subnet mask, and gateway.
  • Local DNS Servers.
  • Internal DNS Domain.
  • Create SRV record for VCS in the local DNS, Do I need A record?
  • NTP Server.
  • SIP domain name = to external DNS domain.

VCS Express:

  • Real IP Address, subnet mask, and default gateway.
  • Global DNS Servers.
  • External DNS Domain
  • SRV record for external domain in the global DNS.
  • SIP domain name = to external DNS domain.


Thanks in advance.


HiWhat is your question ?If


What is your question ?

If you plan install cucm+vcs+vcs_express i recommend two step.

First step. Deploy VCS+VCS_Express

Second step. Deploy VCS with CUCM :

All prerequsites in this manuals.

br Oleksandr

br Oleksandr
New Member

Thank you for your reply, I

Thank you for your reply, I have read these documents but I need help from anyone who did this setup especially VCS and VCS-Express part. Do I need real IP, SRV Records. I want to make sure that I understand these documents

New Member

No one implement VCS and VCS

No one implement VCS and VCS-Express before? Please help

New Member

Any help?

Any help?

Just follow the documentation

Just follow the documentation it is pretty well laid out with only a few caveats. But if you have never done it before it would be in your best intrest to contract out for inplimentation. It not that you cant figure it all out it is the time that you would spend doing it.

HiWhat is your purpose for


What is your purpose for use VCS Expressway ?

Which option for VCS Expressway you have ?

br Oleksandr

br Oleksandr
New Member

Hi,Thanks again, for the time


Thanks again,


for the time being some Tandberg endpoints will be registered to VCS. and some phones will be registered to CUCM like 9971 and DX-650.


Tandberg endpoints and IP phones should place and receive video calls using URI dialing and IP dialing.


Regarding options, in VCS: I have 10 add non-traversal calls and 100 traversal.

in Express: 5 traversal, dual interface and static NAT, VCS 1800 TURN Relay Option, expressway feature, and GW (H323-SIP).



New Member

Any help please?

Any help please?

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