Hi,
Are you open to third party CTI solutions for your integration needs? I would like to recommend checking out Tenfold. Tenfold offers seamless integration for Cisco and most CRM applications. You can sign up for a free trial, request for a demo and check out if this will suit your business needs. Please refer to the link below for their integration list with Cisco
https://www.tenfold.com/integrations/cisco/