Recommendation Q.41 states that connections with a mean one-way propagation time in excess of 400 ms should be avoided apart from exceptional circumstances. Means should therefore be provided in international switching centres to prevent the multiple connection of satellite links whenever possible.
ITU-T Q.14-1988 Referenced Document
ITU-T E.210 Ship Station Identification for VHF/UHF and Maritime Mobile-Satellite Services*, 1993-01-01 Update
ITU-T E.211 Selection Procedures for VHF/UHF Maritime Mobile Services*, 1993-01-01 Update
ITU-T Q.14-1988 history
1988ITU-T Q.14-1988 Means to control the number of satellite links in an international telephone connection