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Cisco AS5350 and Cisco AS5400 Universal Gateway Software Configuration Guide
OL-3418-02 B0
Chapter 6
Configuring Voice over IP
Configuring Basic VoIP
E1 R2 Signaling
R2 is an international signaling standard for channelized E1 networks used in Europe, Asia, and
South America, equivalent to channelized T1 signaling in North America. There are two elements to R2
signaling:
•
Line signaling (supervision), including R2 digital, R2 analog, and R2 pulse
•
R2 interregister signaling (call-setup control), including compelled, noncompelled, and
semi-compelled
If you have ISDN PRI voice ports, be sure to complete
“Configuring E1 R2 Signaling” section on
page 4-6
. Configure signaling types and, if necessary, set parameters unique to specific countries.
T1 CAS Signaling
Channel-associated signaling (CAS) occurs in-band within the data channel, rather than on a separate
signaling channel as is the case (on the D channel) with ISDN PRI. For T1 CAS, specify parameters such
as frame type and line code.
Configure Dial Peers
Your next step in preparing to set up dial peers is to determine the configurable options that you want to
enable.
Configurable Options
Configurable options are the attributes to be applied to calls handled using that dial peer. These typically
include, at a minimum, required quality of service, codec for voice encoding, and whether voice-activity
detection is to be enabled. The following attributes, for example, are typical in a VoIP dial peer:
req-qos best-effort
codec g711ulaw
vad
