Instruction manual

Contents
Issue 4 May 2003 17555-233-767
■ Local exchange trunks 137
800-service trunks 137
Central Office (CO) trunks 137
Digital Service 1 (DS1) trunks 137
Direct Inward Dialing (DID) trunks 137
Direct Inward/Outward Dialing (DIOD) trunks 137
Foreign Exchange (FX) trunks 137
Wide Area Telecommunications Service (WATS) 137
Intelligent networking 137
■ Avaya VoIP Monitoring Manager (VMON) 137
■ Distributed Communications System (DCS) protocol 138
Attendant with DCS 138
Direct trunk group selection 138
Display 138
DCS automatic circuit assurance 138
DCS over ISDN-PRI D-channel (DCS+) 138
DCS protocol — Italy 138
DCS with reroute 138
QSIG/DCS voice mail interworking 139
■ Electronic Tandem Network (ETN) 139
Automatic alternate conditional routing 139
Trunk signaling and error recovery 139
■ Extension number portability 139
■ Internet Protocol (IP) 140
Alternate gatekeeper and registration addresses 141
Classless Interdomain Routing (CIDR) 141
Multiple network regions per C-LAN 141
Multiple location support for network regions 142
Network regions 142
Quality of Service (QoS) 142
802.1p/Q 143
Codecs 143
Differentiated services (DiffServ) 143
Dynamic jitter buffers 143
Integration with Cajun rules 143
QoS for call control 144
QoS for VoIP 144
QoS to endpoints 144
Resource Reservation Protocol (RSVP) 144
Shuffling and hairpinning 145
NAT with shuffling 145