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When using a SuperOffice version between 7.5 and 8.2 R01: Use Services75
https://servername.yourcompany.com/SuperOffice/Remote/Services75/person.svc
When using a SuperOffice version between 8.2 R01 and 8.4 R06: Use Services84
https://servername.yourcompany.com/SuperOffice/Remote/Services84/person.svc
When using a SuperOffice version greater than 8.4 R06: Use Services86
https://servername.yourcompany.com/SuperOffice/Remote/Services86/person.svc
If the Web Services are exposed correctly you see the following screen:
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