
5
Cisco IP Telephony Network Design Guide
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Glossary
POTS
plain old telephone service
PQ
priority queueing
PRI
Primary Rate Interface
PSTN
public switched telephone network
PVID
port VLAN ID
QoS
quality of service
R
RAS
Registration, Admission, and Status protocol
route list
Replaces route point in CallManager 3.0.
RRQ
registration request
RSVP
Resource Reservation Protocol
RTP
Real-time Transport Protocol
S
SA/DA
sending address/destination address
Skinny Station
Protocol
A Cisco protocol using low bandwidth messages that communicate between IP
devices and the Cisco CallManager.
SMDI
Simplified Message Desk Interface (or Station Message Desk Interface)
SMTP
Simple Mail Transfer Protocol
SNMP
Simple Network Management Protocol
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