GetCapabilities (GET):

http://sg.geodatenzentrum.de/wms_poi_bund?REQUEST=GetCapabilities&VERSION=1.3.0&SERVICE=wms

GetFeatureInfo (GET):

http://sg.geodatenzentrum.de/wms_poi_bund?VERSION=1.3.0&REQUEST=GetFeatureInfo&CRS=EPSG:25832&BBOX=731479.26844180806,5688695.137381955,742116.60171120171,5696552.081044958&WIDTH=1362&HEIGHT=1006&LAYERS=zoll&QUERY_LAYERS=zoll&STYLES=&EXCEPTIONS=XML&FORMAT=image/png&INFO_FORMAT=text/html&FEATURE_COUNT=50&I=618&J=145

GetMap (GET):

http://sg.geodatenzentrum.de/wms_poi_bund?VERSION=1.3.0&REQUEST=GetMap&CRS=EPSG:25832&BBOX=731479,5688695,742116,5696552&WIDTH=1362&HEIGHT=1006&LAYERS=rhv,khv,gerichte,thw,hs,jva,sta,bpol,lpol,zoll&STYLES=,,,,,,,,,&FORMAT=image/png