Configuring SIP, SPCP, and NAT
Configuring SPCP on the Cisco SPA 525G/525G2
Cisco Small Business SPA 300 Series, SPA 500 Series, and WIP310 IP Phone Administration Guide 110
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STEP  5 Click Submit All Changes.
Configuring SPCP on the Cisco SPA 525G/525G2
The Cisco SPA 525G/525G2 can be used as part of a Cisco Unified 
Communications System. This system uses SPCP (also called SCCP) for call 
control features. 
To configure SPCP on the Cisco SPA 525G/525G2:
STEP 1 Log in to the configuration utility. 
STEP  2 Click Admin Login and advanced.
STEP  3 Click the System tab. 
STEP  4 Under System Configuration, in the SPA525-protocol field, choose SCCP.
STEP  5 (Optional) To configure the phone to automatically detect the protocol being used 
on the network to which it is connected, in the SPA525-auto-detect-sccp field, 
choose yes.
STEP  6 Click Submit All Changes.
Auth ID  Authentication ID for SIP authentication.
Defaults to blank.
Mini Certificate Base64 encoded of Mini-Certificate concatenated with the 
1024-bit public key of the CA signing the MC of all subscribers 
in the group.
Defaults to blank.
SRTP Private Key Base64 encoded of the 512-bit private key per subscriber for 
establishment of a secure call.
Defaults to blank.
Parameter  Description