From 12.7, expressway support dedicate Management Interface(DMI). s. Instead of sharing a routing interface with other traffic, management traffic is sent and received through LAN3 and no other traffic uses that port.The DMI is disabled by default. Enabling DMI Enabling the DMI function . This switches the LAN3 Port for management Traffic. Still you can…

Nowadays, almost all Cisco products are smart Licensing capable. From version 12.6, expressway support Smart licensing. We are familiar with Expressway options key and release keys infrastructure. With new releases we no more need option keys except the below (still needed). Below option Keys work on both Traditional and Smart licensing mode. Note:- Single licensing…

Troubleshooting steps for MRA login issues with for an on-prem IM-Presence Self service options ==================== – Navigate to Collaboration Solutions Analyzer and use the ‘CollabEdge Validator’ tool to validate the mobile and remote access feature.  – When applicable, please verify that Jabber services are working fine internally (directly connected to Cisco Unified Communications Manager and IM and…

When configuring MRA most conmanly asked question ,”what entries we need on DNS”. Below example i use Dual nic configuration with Dual Domain(internal and external different domain) Infrastructure details Domains:- Internal Domain:- abc.local External Domain:- abc.com Server:- CUCM IP addresses:- 192.168.10.10 HostName :- cucm.abc.local IM Presence address:- 192.168.10.11 HostName :- im.abc.local Expressway C address :-…

When deploying webrtc , Most commonly asked question is regarding the entries required on both internal and external DNS. Required Internal DNS:- A Record join.mydomain to webbridge IP’s Srv _cms-web._tls. join.mydomain to webbridge FQDN _xmpp-clinet._tcp.mydomain to XMPP FQDN Required Public DNS:- A Record join.mydomain to Expressway’s IP

Cisco Unified Communications Mobile and Remote Access (MRA) is part of the Cisco Collaboration Edge Architecture. It allows endpoints such as Cisco Jabber to have their registration, call control, provisioning, messaging and presence services provided by Cisco Unified Communications Manager (Unified CM) when the endpoint is outside the enterprise network. The Expressway provides secure firewall…

When a call reaches Expressway, Expressway classifies it based on source and destination address and port.Based on classification, the call is sent to a specific «zone».Except for the Local Zone , the other zones connect to remote systems as in the case of a SIP Trunk on CUCM Different policies can be applied per zone,…

Components of Expressway Media Traversal Proxy Default component used for media traversal Back-to-back user agent(B2BUA) B2BUA is an application invoked by the Proxy that fully terminates a call leg and establishes a new call leg. The call legs are then bridged together and count as different calls. When using Media encryption policy other than “Auto”…

Whats a Business to Business call ? When user place a call outbound from the enterprise to an external video service/customer or receive a call from external video service/customer over the internet its a business-to -business call. How can we make it working? Using Expressway servers we can make this working. Expressway C and E…

The below is from Cisco Expressway configuration guide. I will be testing this on my lab and will share the screenshots. From X12.5 the Cisco Expressway Series supports the ACME protocol (Automated Certificate Management Environment) which enables automatic certificate signing and deployment to the Cisco Expressway-E from a certificate authority such as Let’s Encrypt. The…