Cisco Webex Calling, cloud-based telephony system.
Cisco Webex Calling
Webex Calling, a cloud-based telephony system.
For enterprises that have been waiting for a trusted brand to offer a globally available multi-tenant cloud-based alternative to their local PBX, the wait is over.
Cisco Webex® Calling offers all the features of a traditional PBX through a subscription service.
Main features Cisco Webex Calling:
- An advanced set of enterprise-grade PBX features.
- An enriched user experience that includes the Cisco® Webex Calling application, for mobile and desktop users, integrated with the Cisco Webex Teams™ collaboration application.
- Support for an integrated user experience with Cisco Webex Meetings and Webex devices, including Cisco IP Phones 6800, 7800 and 8800 series desk phones and analog ATAs.
- Delivery from a set of geo-redundant data centers distributed regionally around the world.
- Service available in a growing list of countries in each region.
- Protection of the existing investment in any local Cisco Unified Communications Manager (UCM) license, through Cisco’s flexible collaboration plan.
- Seamless migration to the cloud at your pace, through cloud and mixed cloud support and on-premises deployments.
PSTN connectivity
How is PSTN connectivity provided with Webex Calling?
Webex Calling allows you to locally connect your existing PSTN service to the Webex cloud through the use of Cisco-approved gateways.
What hardware, gateway, is supported to connect Cisco Webex calls to the PSTN?
Webex Calling allows your customer to connect their existing PSTN service to the Webex cloud using Cisco gateways. The following Cisco Unified Border Element (CUBE) devices support Webex Calling to connect your customer’s PSTN service:
Cisco 4321, 4331, 4351, 4351, 4431, and 4451 Integrated Services Routers (ISRs) using Cisco IOS® XE software version 16.9 (3)
● Cisco Cloud Services Router 1000 Series (CSR 1000V) with virtual CUBE and Cisco IOS XE Software version 16.9 (3)
● Cisco 1100 ISR with Cisco IOS XE version 16.11 software.
Note: CUBE calling licenses are included in the Cisco Webex Calling Flex Plan license. CUBE selection requirements are driven by encryption and decryption needs (Signaling and media to Cisco Webex Calling are always secure).
An example of gateway and software that should be used:
For Webex calls with fewer than 200 users, you can use the Cisco 4321 Integrated Services Router (ISR) with the required Cisco IOS® XE software.
The 4321 ISR will support up to 40 sessions, thus 200 users at a ratio of 1: 5. If you need more sessions, a more powerful router will be required. Here is an example BOM for a 4321 ISR:
4321 ISR hardware ISR4321/K9
+
Unified communication license for Cisco 4320 ISR SL-4320-UC-K9
+
Security license for cisco 4320 ISR SL-4320-SEC-K9
For environments with more than 200 users, we recommend a 4331 ISR and the required CUBE software. The 4331 ISR will manage up to 200 sessions. With a 5:1 ratio, it can provide support for up to 1000 users. This will vary by customer.
