![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
![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_1.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)