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"SPCP token rejected" on 521/524 phones

Problem:

The 521/524 phones display an "SPCP token rejected" message while registering with a UC520.

Explanation:

The SPCP protocol differs from SCCP based on the "token" which has been added. This registration token ensures that the 521/524 phones register only with the UC520 series routers (and the recent SBCS solutions).

Resolution:

This is usually resolved by:

1. Ensuring that Auto Registration is enabled under "telephony-service".

2. Removing the "mac-address" entry under the specified ephone.

3. Reset the phone.

Version history
Revision #:
1 of 1
Last update:
‎11-30-2009 09:55 PM
Updated by:
 
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Comments

That works fine. If you don't want to enable the auto registration you can add type 524G to the ephone, that way the 521G phone should register fine.