Alternative Webex Trunking SIP Routing

Cisco Webex Calling™ Configurations from Control Hub

Imagicle UCX Cloud Suite leverages Public SBC deployed in Imagicle Cloud around the world, to allow the Internet "OTT" Peering to Webex Calling MT cloud.

The following configuration procedure applies ONLY while leveraging on-prem PSTN (local CUBE) or Cloud-Connected PSTN. If you are using Cisco Calling Plan, please apply the configuration described here.

SIP Trunk Setup

Please access to Webex Control Hub web portal to define the Secure SIP Trunk which allows to route fax calls from Webex Calling to Imagicle Cloud. Please select PSTN & Routing ⇒ Gateway Configurations ⇒ Trunk:

Hit "Add Trunk" and populate the following fields:

• Location: select the location where incoming calls for Imagicle Digital Fax should land from pull-down menu

• Name: enter a name to identify the SIP Trunk. Max 12 characters.

• Trunk Type: select "Registration based" from pull-down menu

• Dual Identity Support: disabled

• P-Charge-Info Support: disabled

Hit Save to display a Trunk recap page:

As you notice in above sample, Trunk Status is "Unknown". That's because the destination gateway (Imagicle Public SBC) hasn't been configured yet. Please take note of the following info available in above recap page and send them to wbx.onboarding@imagicle.com:

• Registrar Domain

• Trunk Group OTG/DTG

• Line/Port

• Outbound Proxy Address

• Username

• Password

Imagicle Public SBC Configurations

Public SBC configuration is applied by Imagicle Cloud Services team, based on above Trunk parameters, retrieved in Trunk recap web page.

Once Imagicle CS has applied required SBC configurations, you can go back to Webex Control Hub web portal and check that SIP Trunk(s) are Online: PSTN & Routing ⇒ Gateway Configurations ⇒ Trunk ⇒ Details: 

Route Group Setup

One or more SIP Trunks can be associated to a Route Group within Webex Control Hub. Please go to PSTN & Routing ⇒ Gateway Configurations ⇒ Route Group.

Hit Create Route Group button:

Assign a name of your choice to the RG and start adding one or more trunks, each with a different priority (1 is the highest). Once done, hit Save.

Route List Setup

Route Group inturns must be assigned to a Route List. Please go to PSTN & Routing ⇒ Gateway Configurations ⇒ Route Lists.

Hit Create Route List button:

Select the Location from pull-down menu, add a name of your choice to the RL, add previously defined Route Group in Routing Choice and finally select “Manually add available numbers” to choose the PSTN Fax DIDs to be routed through the Route List.

Once done, hit Create.

Configure users on your Imagicle tenant as described here.

Bear in mind that each Route List is associated to a single Location. If you need to route Fax DIDs included in different Locations, then you must define multiple Route Lists by Location, while there’s no need to define multiple trunks or multiple trunk groups.