OXE Gateway

Entity between SIP world and legacy world, the gateway is used to establish a call from a SIP equipment to an ISDN link, to a legacy set, etc… and vice versa

• Do not confuse the SIP gateway with the OmniPCX Enterprise media gateway boards:
• The SIP gateway is a logical entity that resides within the call server (CS) and is responsible for the SIP signaling for the conversation setup,
• The media gateway boards (GD, GA, INTIP) are the physical devices where the media session will be established when calling to a classic PBX set.

• There is one and only one internal SIP gateway. But there can be many different external SIP gateways (we will come back to this in a later section).

• The SIP gateway is associated to a SIP trunk group. Although there can be many SIP Trunk Groups, there is only one SIP trunk group which is associated to the local SIP gateway. We call this special trunk group the local SIP trunk group.

OXE Dictionnary

Contains the SIP users created on the OXE, it is the database that holds the mapping between SIP URLs and PBX directory numbers (MCDUs). Each registered SIP terminal is automatically added to the dictionnary. Classic PBX terminals are added only if a SIP URL is defined for them in the user management.

• Most of the time you shouldn’t do anything with the Dictionnary. Everything will be handled automatically. You need to access the SIP Dictionnary configuration only for configuration of aliases