Expressway/VCS works with Unrestricted version of CUCM

[Prashanth]

Hi Guys

Does Expressway/VCS Expressway works with Unrestricted version of CUCM.

If not what is the possible solutions.

Thanks

[Manish Gogna · Accepted solution]

Hi Prashanth,

Unrestricted version disables signaling and media encryption. Majority of the MRA deployments do not use encryption from the Expressway-C onwards internally. Meaning the public facing Expressway-E and C shield the CUCM off from the internet. To answer your question unrestricted version is compatible. TCP will be used for signaling and RTP for the media.

Manish

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[Rajkumar Yadav]

Yes I agree it work provided the Expressway C and CUCM, CUC and IM&P are using TCP ( only option available with unresctricted).

I had one setup where the CUCM was wrongly upgrdaded to unrestricted version and expressway was still working.

Regards,

Raaj

[Prashanth]

Thanks for the information Rajkumar.

[Prashanth]

Hi Manish

Your Explanation seems to be right we will go with Expressway installation with CUCM unrestricted version.

THANKS for your help Manish.