Samsung Officeserv 7100 Technical Manual

Also see for OFFICESERV 7100: Quick guide System administration guide User guide User manual User guide

Contents

OfficeServ 7100 SPECIAL APPLICATIONSTECHNICAL MANUAL PART 2 JANUARY 20092.8.10Tandem TrunkingIf the networked switches are in different area codes, e.g.Switch 001 is 561Switch 002 is 954Switch 003 is 305then calls from one switch can be routed over the network link and sent over as localcalls. For example if a user in Switch 001 wants to call a number in the 305 area codethe call could be routed over the network link to switch 003 and sent out as a local call.This is called Tandem Trunking.To achieve this, LCR entries must be created to route the calls as described bymodifying the digits and routing the call across the network link.• Create LCR entries for each networked Switch area codes.E.g. for Switch 001 these would be:Digits Length RT1954 11 051305 11 06• Create the LCR routes with the digits modified to reflect 7 digit dialing in 954 areacode and 10 digit dialing in 305 area code.Eg. for Switch 001 these would be:Route Class Group Modify05:1 1 802 00206:1 1 803 003• Create the modifying digits entries as described in step 2.Eg. for Switch 001 these would be:Entry Del I A002 01 0029 _ _ _003 01 0039 _ _ _These modify digit entries convert the digits dialed by the user into a digit string thatwill let the destination switch route the call through the DID translation table (MMC 714)to the appropriate local trunk group. This is the group already set up in LCR beforenetworking was applied to allow local calls to be sent out of that switch. For example inswitch 001 if local calls go out over trunk group 800 there would be an entry in MMC714 for digits 561 (switch 001’s home area code) to “ring” 800 for each of the ringplans.