Abstract: Travel and telecommunication especially with use of conventional telephone system have for long have an order of relationships that follows that of substitution-that is accessibility to telephone substitute for trip making. This hypothesized relationships already established in the developed countries was replicated in the developing countries having the same pattern. This study examines the pattern of relationship with an advanced telecommunication which is still nascent in Nigeria-Mobile telephone has on trip making in Nigeria largest metropolitan area. Self completion survey was used for this study and regression analyses were applied for data analysis. The result of the new relationship hypothesized follows that already established in literature and new addition as that of substitution, complementarity and enhancement, neutrality, modification and perfection of trips across various activity zones within the urban centre.