I have a CME 7.0 and have Cisco IPphone registered using SCCP, however I need to add a 3rd party SIP device that requires SIP registration, If i configure the SIP registrar would it create any conflict of any kind ?
For SIP CME configuration, you will find local phones can register to CME without the need of "authentication register" command. The CME will authenticates the MAC address compare with the ARP request.
For remote phones that are NOT in the same subnet, SIP digest authentication is required. You need username and password stored in the phone config file, and compare it against the voice register pool.
Without "authentication register", when you do a "debug ccsip message", you will see 401 Unauthorized for the remote phones.
"authentication register" is a global settings and will affect all phones.
voice service voip allow-connections sip to sip sip bind control source-interface vlan102 bind media source-interface vlan102 ! voice register global mode cme source-address 18.104.22.168 port 5060 max-dn 20 max-pool 20 authenticate register ! voice register dn 1 number 1001 ! voice register pool 1 id mac 0011.2233.4455 type 3905 number 1 dn 1 dtmf-relay sip-notify username 1001 password cisco codec g711ulaw
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