Open SIP ALG Enhancements

Cisco Jabber is an all-in-one application, enabling a user to perform functions in addition to audio and video calls. The existingSIPSession Initiation Protocol. SIP is used for signaling and controlling multimedia communication session such as voice and video calls.ALGApplication Layer Gateway. ALG is a security component that manages application layer protocols such as SIP, FTP and so on.is enhanced to support Cisco Jabber.

Parser Logic Enhancement

The currentSIPSession Initiation Protocol. SIP is used for signaling and controlling multimedia communication session such as voice and video calls.ALGApplication Layer Gateway. ALG is a security component that manages application layer protocols such as SIP, FTP and so on.parser is capable of handling audio calls. The same is extended to handle video calls,appShort form for application. It generally refers to the application that is downloaded and used on mobile devices.共享,保持或恢复调用,conference calls, and call transfer.

Two additional ports, namelyTCPTransmission Control Protocol. TCP is a communication protocol that defines the standards for establishing and maintaining network connection for applications to exchange data.5222 andTCPTransmission Control Protocol. TCP is a communication protocol that defines the standards for establishing and maintaining network connection for applications to exchange data.8443 are added to the defaultjabber-aclIP access list. These ports are required for the clients to register to the server.

(host) [md] (config) #ip access-list session jabber-acl

(host) [md] (config-submode) #any any tcp 5222 permit

(host) [md] (config-submode) #any any tcp 8443 permit

Thejabber-aclIP access list is included in the voice user-role by default. If the administrator chooses to use any other custom user-role, theACLAccess Control List. ACL is a common way of restricting certain types of traffic on a physical port.should be added manually to the custom user-role.

Identification of Cisco Jabber Clients

A new configuration settingJabber Server IPis introduced where an administrator can configure the Cisco Jabber server (Cisco Unified Communication Manager and Cisco Unified Presence Manager) IP address for client identification. You can configure up to 16 such IP addresses.