Cisco Cisco Computer Telephony Integration Option 9.0 Reference Guide

TAC Case Open Tool automatically recommends resources for an immediate 
solution. If your issue is not resolved using the recommended resources, your case 
will be assigned to a Cisco TAC engineer. The online TAC Case Open Tool is 
located at this URL:

For P1 or P2 cases (P1 and P2 cases are those in which your production network 
is down or severely degraded) or if you do not have Internet access, contact Cisco 
TAC by telephone. Cisco TAC engineers are assigned immediately to P1 and P2 
cases to help keep your business operations running smoothly.

To open a case by telephone, use one of the following numbers:

Asia-Pacific: +61 2 8446 7411 (Australia: 1 800 805 227) 
EMEA: +32 2 704 55 55 
USA: 1 800 553-2447

For a complete listing of Cisco TAC contacts, go to this URL:

To ensure that all cases are reported in a standard format, Cisco has established 
case priority definitions.

Priority 1 (P1)—Your network is “down” or there is a critical impact to your 
business operations. You and Cisco will commit all necessary resources around 
the clock to resolve the situation. 

Priority 2 (P2)—Operation of an existing network is severely degraded, or 
significant aspects of your business operation are negatively affected by 
inadequate performance of Cisco products. You and Cisco will commit full-time 
resources during normal business hours to resolve the situation.

Priority 3 (P3)—Operational performance of your network is impaired, but most 
business operations remain functional. You and Cisco will commit resources 
during normal business hours to restore service to satisfactory levels.

Priority 4 (P4)—You require information or assistance with Cisco product 
capabilities, installation, or configuration. There is little or no effect on your 
business operations.