Why does my Expressway call fail?
Call failures can occur if the traversal zones on Expressway are configured with an Authentication policy of Check credentials. Ensure that the Authentication policy on the traversal zones used for Mobile and Remote Access is set to Do not check credentials.
What is Cisco Unified Communications Mobile and Remote Access?
Cisco Unified Communications Mobile and Remote Access is a core 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 not within the enterprise network. The Expressway provides secure firewall traversal and line-side support for Unified CM registrations.
What is MRA in Jabber?
MRA provides a secure connection for Jabber application traffic without having to connect to the corporate network over a VPN. It is a device and operating system agnostic solution for Cisco Jabber clients on Windows, Mac, iOS and Android platforms.
Why is Jabber not signing in?
Jabber can fail to sign in due to the SSH tunnels failing to be established. The traversal zone between the Expressway-C and Expressway-E will work normally in all other respects. Expressway will report 'Application failed - An unexpected software error was detected in portforwarding.pyc'.
What is deployment in a network?
A deployment is an abstract boundary used to enclose a domain and one or more Unified Communications service providers (such as Unified CM, Cisco Unity Connection, and IM and Presence Service nodes). The purpose of multiple deployments is to partition the Unified Communications services available to Mobile and Remote Access (MRA) users. So different subsets of MRA users can access different sets of services over the same Expressway pair.We recommend that you do not exceed ten deployments.
How does Jabber verify the identity of Expressway-E?
Jabber clients verify the identity of the Expressway-E they are connecting to by validating its server certificate. To do this, they must have the certificate authority that was used to sign the Expressway-E's server certificate in their list of trusted CAs.
How many IM certificates are needed for XMPP?
Two IM and Presence Service certificates are significant if you use XMPP: