DHL INTERNATIONAL B.V. is a provider of products and services such as internet protocol (ip) telephony consultants,simulator design consultants,international couriers and delivery services,telecommunications engineering consultants,telephone installation design and development consultants,software, interactive voice response (ivr),software, telephone call accounting,software, computer telephony integration (cti),software, engineering,software, interactive multimedia,telephone conversation recording machines,voice recording (logging) systems, digital,teleloop systems, transmitter to hearing aid,telephone equipment for the disabled,emergency call systems for motorways,automated attendant systems, telephone,telephones, feature and novelty,telephone intercommunication systems, railway,telephone intercommunication equipment, loudspeaker type,telephone intercommunication equipment, push-button types,telephone intercommunication equipment, direct speech,telephones, voice over internet protocol (voip),music on hold and digital announcer systems for telephone systems,videophones.