MRA Login Troubleshoot

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…

Mobile Remote Access (DNS entries)

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 :-…

Web Client With Expressway – DNS Entries

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

Mobile And Remote Access (MRA)

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…

Expressway Zone

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,…

Expressway C and E Media Traversal

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”…

Business-to-Business using Expressway

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…

Using ACME on Expressway-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…