User's Manual

Table Of Contents
202 Operation
Chapter 4 - Operation and Administration
Automatic support of Codec changing in a VoIP call - the DRAP messages
update the BreezeMAX equipment on any Codec change or subsequent
bandwidth allocation change during the call, hence the exact required
bandwidth is always provided. This is essential in fax transmissions where the
call might begin with one Codec and switch to another to accommodate the fax
transmission.
VoIP stack is always in synch with the wireless transport - as the DRAP is
integrated into the VoIP stack all calls are terminated according to the VoIP
standard. Even if no resources are available, the voice gateway receives an
appropriate message from the BreezeMAX system and sends the required
signaling message according to the VoIP standard used.
4.11.1.3 Supporting Generic (3rd Party) VoIP Services
When using VoIP devices that do not support the DRAP protocol, the required
service can be provided through a Data (L2) service with a CG QoS (see
Section 4.11.4.7) that is defined in accordance with the estimated bandwidth
required for the service. The required bandwidth depends on several parameters,
such as codec type, sample rate and T.38 Fax Relay support. The service
parameters depend also on the marking features of the VoIP equipment (the
ability to use either DSCP or 802.1p to distinguish between RTP, RTCP and VoIP
Signaling, and Data traffic).
The system includes several pre-configured Service Profiles for commonly used
VoIP applications.
For details on the pre-configured profiles, refer to Section 4.11.8. For details on
defining Service Profiles for generic VoIP devices, refer to Appendix B.
4.11.1.4 Authentication and Service Provisioning
The Authentication and Service Provisioning process is affected by the Base
Station’s Service Mode (Advanced or Quick) and by specific SU Status (Permanent
or Temporary).
A Permanent SU (an SU that is defined as such in the database) is provisioned
with the “permanent” Service(s) defined for it in the database (if any). The Services
are provisioned based on the SU’s MAC Address.
A Temporary SU (not defined as Permanent in the database) will be authenticated
and provisioned with the Service(s) defined for it by the RADIUS Authentication
server. The authentication and service provisioning are based on the SU Name
(User Name) and User Password. The SU will be added to the database as a
Temporary SU.