I had a lengthy discussion last night with Ramsoft HL7 engineer and development team, they responded that the URL format has to be according to Ramsoft client integration document. If we have to use the URL format that HOSxP requires then customization cost and development time will be incurred on Ramsoft end.
The workaround suggestion is to engage someone to develop a javascript or something similar to convert the HOSxP URL format with the parameters into Ramsoft URL format in order to call our viewer/portal.
Do let me know if you are able to engage anyone to do the javascript for you, so that we can plan forward on what to do next.