Providing address information for reaching a wireless terminal

Abstract

The invention relates to a method of providing address information for reaching a wireless terminal, said wireless terminal being connected to a first wireless communication network, a varying public address being dynamically allocated to said wireless terminal, and said wireless terminal being reachable from outside of the first wireless communication network by means of said varying public address. The method comprises dynamically notifying substantially directly at least one other communicating party of a current public address of the wireless terminal.

1 - 12 . (canceled) 
   
   
       13 . A method comprising:
 receiving at an external name server, to which a wireless terminal has been registered by means of identification information associated with the wireless terminal, a notification of a current public address of the wireless terminal, said wireless terminal having a private address in a first wireless communication network and being coupled to the first wireless communication network, said wireless terminal being reachable from outside of the first wireless communication network by means of a varying public address,   maintaining said current public address in said external name server in association with said identification information, and   conditionally giving out said current public address from said external name server according to conditions given in profile information associated with said identification information, so that the address information for reaching said wireless terminal is conditionally obtainable from said external name server by means of said identification information.   
   
   
       14 . The method of  claim 13 , wherein said notification is an address update request comprising a source address and a destination address, and the method comprises:
 using the source address of the address update request as seen by said external name server as said current public address of the wireless terminal.   
   
   
       15 . The method of  claim 14 , wherein said sending an address update request is repeated periodically. 
   
   
       16 . The method of  claim 13 , wherein said notifying comprises:
 dynamically finding out a public address allocated to the wireless terminal at a given moment for obtaining said current public address of the wireless terminal, and   sending said current public address from said wireless terminal to said external name server.   
   
   
       17 . The method of  claim 16 , wherein said sending is conducted, if said current public address has changed after the previous sending of the current public address. 
   
   
       18 . The method of  claim 13 , wherein the method comprises receiving said profile information at said name server in combination with said notification of the current public address. 
   
   
       19 . The method of  claim 13 , wherein said profile information defines to whom said address information shall be available. 
   
   
       20 . The method of  claim 13 , wherein said profile information defines a time period during which said address information shall or shall not be available. 
   
   
       21 . The method of  claim 13 , wherein said external name server is located outside of said first wireless communication network. 
   
   
       22 . (canceled) 
   
   
       23 . A system comprising:
 a wireless communicating network,   a wireless terminal coupled to said wireless communication network, said wireless terminal having a private address in the wireless communication network and being configured to have a dynamically allocated varying public address, and said wireless terminal being configured to be reachable from outside of said wireless communication network by means of said varying public address, and   an external name server configured to have said wireless terminal registered thereto by means of identification information associated with the wireless terminal;   said wireless terminal being configured to dynamically notify said external name server of a current public address of the wireless terminal,   said external name server being configured to maintain said current public address in association with said identification information,   said external name server being configured to maintain profile information associated with said identification information, and   said external name server being configured to conditionally give out said current public address according to conditions given in said profile information, so that the address information for reaching said wireless terminal is conditionally obtainable from said external name server by means of said identification information.   
   
   
       24 . A name server comprising:
 a processor and associate memory configured:   to maintain a current public address of a wireless terminal in association with identification information associated with the wireless terminal, said wireless terminal being reachable by means of said public address, said wireless terminal having a private address in a wireless communication network,   to maintain profile information associated with said identification information, and   to conditionally give out said current public address according to conditions given in said profile information, so that the address information for reaching said wireless terminal is conditionally obtainable from said name server by means of said identification information.   
   
   
       25 . (canceled) 
   
   
       26 . (canceled) 
   
   
       27 . (canceled) 
   
   
       28 . (canceled) 
   
   
       29 . A wireless terminal comprising:
 a private address in a wireless communication network, and   a processor and a memory configured:   to have a dynamically allocated varying public address, to be reachable from outside of said wireless communication network by means of said varying public address,   to be registered to an external name server by means of identification information associated with the wireless terminal,   to dynamically notify said external name server of a current public address of the wireless terminal, and   to provide profile information with said identification information to said external name server.   
   
   
       30 . (canceled) 
   
   
       31 . A computer readable medium encoded with a computer program, that when executed in a name server, performs:
 maintaining in said name server a current public address of a wireless terminal in association with identification information associated with the wireless terminal, said wireless terminal being reachable by means of said public address and having a private address in a wireless communication network,   maintaining in said name server profile information associated with said identification information, and   conditionally giving out said current public address according to conditions given in said profile information, so that the address information for reaching said wireless terminal is conditionally obtainable from said name server by means of said identification information.   
   
   
       32 . (canceled) 
   
   
       33 . A computer readable medium encoded with a computer program, that when executed in a wireless terminal performs:
 dynamically notifying an external name server of a current public address of the wireless terminal, said wireless terminal coupled to a wireless communication network, said wireless terminal having a private address in the wireless communication network and having a varying public address dynamically allocated to it, said wireless terminal being reachable from outside of said wireless communication network by means of said varying public address, and said wireless terminal being registered to said external name server by means of identification information associated with the wireless terminal, and   providing profile information associated with said identification information to said external name server.   
   
   
       34 . (canceled) 
   
   
       35 . A method comprising:
 dynamically notifying an external name server of a current public address of a wireless terminal, said wireless terminal being connected to a wireless communication network, said wireless terminal having a private address in the wireless communication network and having a dynamically allocated varying public address, said wireless terminal being reachable from outside of the first wireless communication network by means of said varying public address, and said wireless terminal being registered to an external name server by means of identification information associated with the wireless terminal, and   providing profile information associated with said identification information to said external name server.   
   
   
       36 . The method of  claim 35 , wherein said notifying comprises dynamically sending an address update request to said external name server, the address update request comprising a source address and a destination address. 
   
   
       37 . The method of  claim 36 , wherein said sending of an address update request is repeated periodically. 
   
   
       38 . The method of  claim 35 , wherein said notifying comprises
 dynamically finding out a public address allocated to the wireless terminal at a given moment for obtaining said current public address of the wireless terminal, and   sending said current public address from said wireless terminal to said external name server.   
   
   
       39 . The method of  claim 38 , wherein said sending is conducted if said current public address has changed after the previous sending of the current public address. 
   
   
       40 . The name server of  claim 24 , wherein the name server is further configured to receive said profile information in combination with a notification of the current public address of the wireless terminal. 
   
   
       41 . A name server comprising:
 means for maintaining a current public address of a wireless terminal in association with identification information associated with the wireless terminal, said wireless terminal being reachable by means of said public address, said wireless terminal having a private address in a wireless communication network,   means for maintaining profile information associated with said identification information, and   means for conditionally giving out said current public address according to conditions given in said profile information, so that the address information for reaching said wireless terminal is conditionally obtainable from said name server by means of said identification information.