Path: utzoo!telecom-request Date: 5 Apr 91 19:40:19 GMT From: Gerald Peppers Newsgroups: comp.dcom.telecom Subject: Two Wire vs Four Wire Subscriber Line Message-ID: Organization: Motorola Inc., Cellular Infrastructure Div., Arlington Hgts, IL Sender: Telecom@eecs.nwu.edu Approved: Telecom@eecs.nwu.edu X-Submissions-To: telecom@eecs.nwu.edu X-Administrivia-To: telecom-request@eecs.nwu.edu X-Telecom-Digest: Volume 11, Issue 269, Message 5 of 11 Lines: 24 I have a question for which I hope that more knowledgable people in telephony can assist me with! What is the difference between a two wire subscriber line and a four wire subscriber line? That is to say, if I am a cellular switch owner and don't know a lot about cellular but my management staff does, how do I go about making an informed decision on the selection of two wire vs. four wire subscriber lines coming into and out of my switch? What are the advantages of using two wire subscriber lines coming into the switch? What are the advantages and disadvantages of using four wire subscriber lines? Is the decision made based on the direction of the trunk circuits (Inbound , Outbound or Two-Way Trunks)? Please advise, anyone! Thank you, Gerald Peppers usenet address: !motcid!void!peppers