Feature Dependencies And Restrictions - Avaya 1230 Administration

Feature dependencies and restrictions

The number of line keys on the IP Deskphone limits the number of accounts that you can register
simultaneously. The IP Deskphone is limited to six accounts. Connecting an Expansion Module to
the IP Deskphone increases the limit by 18, allowing for 24 registered accounts. Additional
Expansion Modules do not increase the limit further.
These are hard limits. Further restrictions may be imposed by the administrative policy. See
Configuration on page 175
Performance characteristics
Because the multiuser feature can allow the IP Deskphone to have multiple users logged on to the
IP Deskphone at the same time, the chances of numerous multiple calls increase. The IP
Deskphone can handle five simultaneous incoming calls at a time without any noticeable impact. But
as the number of simultaneous incoming calls increase, there is a noticeable delay in ringing and
updating the display to present all the calls to the user. It may take up to five seconds for 10
simultaneous incoming calls, and this time increases as the IP Deskphone receives more
simultaneous incoming calls.
CS 1000: Several keys with the same DN on a TN
CS 1000 allows you to simultaneously make or receive a maximum of 2 calls. To overcome this
limitation you can configure several Multiple Call Ringing (MCR) keys with the same DN on one TN
and register from the IP Deskphone to each configured key. This applies to systems using Meridian
Communications Adapter (MCA) – Multiple Appearance DN (MADN).
Each registration must have the same Login ID and Authentication ID. The first registration maps to
the lowest numbered DN key. Subsequent registrations are assigned DN keys in ascending order of
the key numbers.
The following example shows several MCR keys configured on the same DN, on one TN:
TN 100 0 0 1
UEXT/SIPL
With:
SIPU user1
SCPW xxxx
KEY 0 MCR 5000
KEY 1 HOT U xxxx
KEY 2 MCR 5000
KEY 3 MCR 5000
March 2015 SIP Software for Avaya 1200 Series IP Deskphones-Administration
Comments? infodev@avaya.com
Feature dependencies and restrictions
189