Entity Framework How to query data in a Navigation property table

Question

I have a the following setup

m_handsets = From p In RL.App.TComEntities.tblTelephoneNumbers _
                                               Where p.companyId = m_CompanyID _
                                               Select p

m_handsets = DirectCast(m_handsets, ObjectQuery(Of RL.TelephoneNumbers)).Include("tblCalls")

where m_handsets is defined as

Private m_handsets As IQueryable(Of RL.tblTelephoneNumbers)

which works as expected however what I want to do know is query the Navigation property (tblCalls) so I can do something like the following

From p In m_handsets.tblCalls 
Where m_handsets.tblCalls.price > 100

but I have no idea of the proper syntax, can anyone help?

EDIT:

I think the complexity comes here because in this instance I could have 5 tblTelephoneNumbers in m_handsets and then x amount of calls for that particular telephone number. I am interested in the tblCalls for each but I would like to filter them all for each tblTelehoneNumber.

Entity Diagram which (hopefully) should illustrate further

So I currently know all the handsets that are associated with the company I am interested in. I can also see the calls loaded as a navigation property in debug mode, but I want to say is take this filter (in this example price>100 and apply it to all handsets->calls