I have recently purchased a UC520, however have a Siemens SIP cordless phone that I am hoping to join onto the UC520.
I've had a look in CCA but can't for the life of me see anywhere to add "SIP" extensions to the system.
Does this have to be done by the CLI, and if it does can anyone point me in the right direction?
This is not possible with CCA, only CLI. In addition, your version of CME must be 8.6+. Please be aware, we offer no support for 3rd party SIP phones, so use this at your own risk.
I don't take credit for this, as I found this information on this post: https://supportforums.cisco.com/message/3999456
voice service voip
allow-connections sip to sip
registrar server expires max 600 min 60
voice translation-rule 412
rule 1 /^ABCD\(.*\)/ /\1/
voice translation-profile SIP_Passthrough
translate called 412
voice register global
source-address X.X.X.X port 5060
create profile sync
voice register dn XX
translation-profile incoming SIP_Passthrough
call-forward b2bua busy XXX
call-forward b2bua noan XXX timeout XX
call-forward b2bua unregistered XXX
voice register pool XX
id mac XXXX.XXXX.XXXX
session-transport tcp -> what your phone uses
number 1 dn XX
dtmf-relay rtp-nte -> what your phone uses
username XXX password 1234 -> your setup
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