<?xml version="1.0"?>   <location id="mzh5212-lan-uni-bremen">     <tag>Uni-Bremen</tag>     <tag>MZH-5</tag>     <geo-field>       <center> 	<latitude>53.10663</latitude> 	<longitude>8.852615</longitude>       </center>       <radius>10.4</radius>     </geo-field>   </location>    <location id="mzh5210-lan-tcom">     <tag>Uni-Bremen</tag>     <tag>MZH-5</tag>     <geo-field>       <center> 	<latitude>53.106534</latitude> 	<longitude>8.852787</longitude>       </center>       <radius>8</radius>     </geo-field>   </location>    <provider id="uni-bremen" name="Uni-Bremen"/>    <provider id="tcom" name="T-Com"/>    <service id="wlan-local-access-uni-bremen">     <tag>access network</tag>     <refinement         xmlns:lan="urn:uni-bremen:params:xml:ns:service-maps:lan">       <lan:lan> 	<lan:essid>Uni-Bremen</lan:essid> 	<!-- defaults: 	<lan:authentication/> 	<lan:physical-layer>802.11b</lan:physical-layer> 	<lan:network-protocol>ipv4</lan:network-protocol> 	<lan:network-autoconf>dhcp</lan:network-autoconf> 	-->       </lan:lan>     </refinement>   </service>    <service id="lan-internet-uni-bremen">     <tag>internet access</tag>     <tag>private</tag>     <dependencies type="all">       <service-reference ref="lan-local-access-uni-bremen"/>     </dependencies>     <refinement         xmlns:auth="urn:uni-bremen:params:xml:ns:service-maps:authorization">       <auth:authorization 	  xmlns:vpn="urn:uni-bremen:params:xml:ns:service-maps:authorization:vpn"> 	<vpn:vpn><!-- to be specified... --> 	  <vpn:protocol>pptp</vpn:protocol> 	  <vpn:host>login.fb3.lan</vpn:host>         </vpn:vpn> 	<vpn:vpn> 	  <vpn:protocol>openvpn</vpn:protocol> 	  <vpn:host>login.fb3.lan</vpn:host>         </vpn:vpn>         <vpn:vpn> 	  <vpn:protocol>pptp</vpn:protocol> 	  <vpn:host>login.zfn.lan</vpn:host>         </vpn:vpn>       </auth:authorization>     </refinement>   </service>    <service id="lan-local-access-tcom">     <tag>access network</tag>     <refinement         xmlns:lan="urn:uni-bremen:params:xml:ns:service-maps:lan">       <lan:lan> 	<lan:essid>T-Com</lan:essid>       </lan:lan>     </refinement>   </service>    <service id="lan-internet-tcom">     <tag>internet access</tag>     <tag>public</tag>     <tag>hotspot</tag>     <dependencies type="all">       <service-reference ref="lan-local-access-tcom"/>     </dependencies>     <refinement         xmlns:auth="urn:uni-bremen:params:xml:ns:service-maps:authorization">       <auth:authorization           xmlns:uam="urn:uni-bremen:params:xml:ns:service-maps:authorization:uam">         <uam:uam>           <uam:provider-id>Credentials-for-Deutsche-Telekom-Hotspots</uam:provider-id>           <uam:protocol>icmp</uam:protocol>           <uam:host>verify-host.t-com.de</uam:host>         </uam:uam>       </auth:authorization>     </refinement>     <refinement         xmlns:acc="urn:uni-bremen:params:xml:ns:service-maps:accounting">       <acc:accounting><!-- T-Mobile USA Hotspot tariffs for US hotspot -->         <acc:details-web-link>http://t-com.net/tariff/details</acc:details-web-link>         <acc:tariff name="Unlimited National" base="time">           <acc:required-plan>Unlimited National - Annual</acc:required-plan>         </acc:tariff>         <acc:tariff name="DayPass" base="time">           <!-- no required-plan, then no specific price-plan required -->           <acc:charge-unit unit="h">24</acc:charge-unit>           <acc:cost-per-unit currency="USD">9.99</acc:cost-per-unit>         </acc:tariff>         <acc:tariff name="Pay As You Go" base="time">           <acc:charge-unit unit="min">1</acc:charge-unit>           <acc:cost-per-unit currency="USD">0.1</acc:cost-per-unit>           <acc:minimum-charge currency="USD">6.00</acc:minimum-charge>         </acc:tariff>       </acc:accounting>     </refinement>     <refinement         xmlns:roam="urn:uni-bremen:params:xml:ns:service-maps:roaming"         xmlns:acc="urn:uni-bremen:params:xml:ns:service-maps:accounting">       <roam:roaming> 	<roam:partner>debitel</roam:partner> 	<acc:tariff name="debitel T-Mobile W-LAN"> 	  <acc:charge-unit unit="min">15</acc:charge-unit> 	  <acc:cost-per-unit currency="EUR">1.72</acc:cost-per-unit> 	</acc:tariff>       </roam:roaming>     </refinement>   </service>    <service id="lan-voip-tcom">     <tag>voip</tag>     <dependencies type="all">       <service-reference ref="lan-local-access-tcom"/>     </dependencies>   </service>    <instance>     <location-reference ref="mzh5212-lan-uni-bremen"/>     <service-reference ref="lan-local-access-uni-bremen"/>     <provider-reference ref="uni-bremen"/>   </instance>    <instance>     <service-reference ref="lan-internet-uni-bremen"/>     <provider-reference ref="uni-bremen"/>   </instance>    <instance id="inst-mzh5210-lan-tcom">     <location-reference ref="mzh5210-lan-tcom"/>     <service-reference ref="lan-local-access-tcom"/>     <provider-reference ref="tcom"/>   </instance>    <instance>     <service-reference ref="lan-internet-tcom"/>     <provider-reference ref="tcom"/>   </instance>    <instance>     <service-reference ref="lan-voip-tcom"/>     <provider-reference ref="tcom"/>   </instance> </service-map> 