![Cisco 2900, 3900, and 4000 Series Integrated Services Router Interoperability with Cisco Unified Communications Manager Data Sheet - Cisco Cisco 2900, 3900, and 4000 Series Integrated Services Router Interoperability with Cisco Unified Communications Manager Data Sheet - Cisco](https://www.cisco.com/c/dam/en/us/products/collateral/unified-communications/tdm-gateways/data-sheet-c78-729824.docx/_jcr_content/renditions/data-sheet-c78-729824_0.jpg)
Cisco 2900, 3900, and 4000 Series Integrated Services Router Interoperability with Cisco Unified Communications Manager Data Sheet - Cisco
![Asynchronous Terminal Server Interface Modules for Cisco 4000 Series Integrated Services Routers Data Sheet - Cisco Asynchronous Terminal Server Interface Modules for Cisco 4000 Series Integrated Services Routers Data Sheet - Cisco](https://www.cisco.com/c/dam/en/us/products/collateral/routers/4000-series-integrated-services-routers-isr/datasheet-c78-739968.docx/_jcr_content/renditions/datasheet-c78-739968_0.jpg)
Asynchronous Terminal Server Interface Modules for Cisco 4000 Series Integrated Services Routers Data Sheet - Cisco
![Hardware Installation Guide for Cisco 4000 Series Integrated Services Routers - Overview of the Cisco 4000 Series ISRs [Cisco 4000 Series Integrated Services Routers] - Cisco Hardware Installation Guide for Cisco 4000 Series Integrated Services Routers - Overview of the Cisco 4000 Series ISRs [Cisco 4000 Series Integrated Services Routers] - Cisco](https://www.cisco.com/c/dam/en/us/td/i/300001-400000/360001-370000/367001-368000/367358.jpg)