SIP protocol or SCCP

[scott.smail]

All,

We're looking at changing our PRI's over to SIP.  I understand there is licensing that we will have to purchase for the SIP trunks, but will we have to make and changes to our phone configurations?  Currently we use SCCP protocol...will we have to change them all to SIP protocol?

Thanks!

[Jaime Valencia · Accepted solution]

No, CUCM or CME do protocol interworking.

Just as you had nothing to do if you used MGCP, H323 or SIP towards the GW and SCCP or SIP on the phones.

[scott.smail]

Thanks for clarifying!