These commands are used to set additional aliases for the node. It can be configured by the sysop to accept connect requests ( uplinks ) to the node callsign, the node alias, or the 3 aliases shown by these commands. When the node accepts a connection to one of these aliases, it will immediately invoke the BBS, DXC or HOST commands for you. The way this would normally be used is as follows. Suppose your local ( for example ) BBS was not accessible on the frequency that the node operates on. The BBS alias can be configured to provide easy access across other nodes to the BBS. Hence in the case of the Ipswich nodes, GB7MXM does not have a port on 144.650, but the node IPS2 on 144.650 can get to it by means of another node and a 9600 baud link. If IPS2 is set to accept the extra aliases, and if BBSAlias is set to MXMBBS, then anyone who tries to uplink to MXMBBS in the Ipswich area would be automatically connected to GB7MXM. It goes without saying that if GB7MXM had a port on 144.650 itself, then chaos would ensue.