Call Blocking; Codecs - Avaya Communication Server 1000 Installation And Commissioning Manual

Alias IP address
Using the DN of a wireless handset, support personnel can obtain the current or most recent
alias IP address used by a wireless handset when it checked in with the master of a WLAN IP
Telephony Manager 2245 group, and subsequently registered with the LTPS and Call Server.
=> PRT DNIP <DN of wireless handset>
Wireless telephone type designation
Unless there is another preferred use for the DES (Designator) prompt in LD 11, Avaya
recommends using the DES prompt to indicate the type of WLAN Handset—either type 2210,
2211, 2212, or Avaya 6120 WLAN Handseet—for the 2004P1 or the 2004P2 type of virtual line
TN. This allows support personnel to enter 2210, 2211, 2212 or 6120 at the LD 20 DES prompt
and receive a list of handsets that are configured on the Call Server.

Call blocking

The WLAN IP Telephony Manager 2245 controls the media stream and blocks calls due to
bandwidth constraints on any AP without notifying the Call Server.
• The WLAN IP Telephony Manager 2245 can be configured with the maximum number of
simultaneous calls allowed on a single AP.
• On an incoming call for a wireless handset associated with a full AP, the caller hears
ringback and the Call Forward No Answer (CFNA) treatment is applied, such as
forwarding the call to voice mail. The called party is not notified of the incoming call.
• If the call originates from a wireless handset that is on a bandwidth-restricted AP, the caller
hears a warning tone and the call is blocked.
• If a wireless handset moves into an area serviced by an AP that is already at capacity,
the wireless handset does not associate with the new AP. Instead, the wireless handset
attempts to remain associated with an AP that has sufficient bandwidth. This could result
in packet loss, degraded signal and voice quality, and a call could be dropped.
• UNIStim signaling, such as watchdog updates or lamp audit, are not affected by the
bandwidth constraint.

Codecs

G.711, G.729A, and G.729B codecs are supported. The RTP packets that transit between the
wireless handsets and the WLAN IP Telephony Manager 2245 always contain 30 ms of voice.
The WLAN IP Telephony Manager 2245 repackages the voice data to the correct packet size.
Avaya WLAN IP Telephony Installation and Commissioning
Codecs
November 2010 87