iPECS eMG80/100& eMG800 & UCP & vUCP
Administration and Programming Manual Issue 2.5
11
IP Phone Registration
An unregistered iPECS IP Phones attempt to discover and register with a local (on the same LAN) iPECS
system, in this case, the eMG. The phone will send a registration request to the MPB IP address. If no
response is received, the phone will send a multi-cast request. With the request, the phone will send the MAC
address. This address must be assigned in the PGM 235.
When the system receives the request, the MAC address received is compared to the Registration table, and,
if matched, the phone is registered. The next available sequence number starts at “19” and is assigned the
next available Station Number.
If the iPECS IP Phone is configured as a remote device, it will send a registration request to the iPECS system
at the configured IP address. When the system receives the request, it is normally processed except the MAC
address in PGM 442 Remote Device Register.
Default Database
Based on the installed equipment, the system populates the database with the default values. Refer to
Appendix C based on Keyset administration as numbering plan 1. Once the database is set to default, the
system will conduct normal operations.
2.2.2 UCP Initialization
When power is applied to the UCP or the UCP Reset button is pressed, the system will initiate the “Power-up”
routine. The system will check the Initialization switch (pole 4th of UCP Mode Dip Switch). If the switch is in
the OFF position, the system will perform a simple Power-Up routine; clear all scratch-pad memory, load run-
time programs, establish communications with each registered gateway Module and iPECS terminal, send
RESTART commands and load appropriate settings to the Modules and terminals. If a Module or terminal
does not respond after several attempts, the system places the device in an out-of-service mode but maintains
the database settings. Once the Power-up routine is complete, the system will conduct normal operations.
If the Initialization switch is in the ON position, the system will perform the full Initialization procedure in place
of the Power-Up routine. The initialization procedure will set the system database to default values. Further,
during the full initialization procedure, the system will establish communications with each gateway Module
and iPECS terminal for registration. This communication will use the default device IP address and the UCP
MAC address for system identification. The system will maintain IP addresses and Sequence Numbers for
previously registered gateway Modules and iPECS terminals. These values are employed for subsequent
communication and logical assignments of numbering plans, respectively. In addition, the system sends
commands to modify all settings to the default values, including IP addresses but maintains the existing
Sequence Numbers.
After successful initialization, should a device not respond to several attempts by the system to communicate,
the system places the device in an out-of-service mode but maintains the database. Once initialization is
complete, set the initialization switch to the OFF position to protect the database. The system must be
restarted to complete the initialization.
2.2.2.1 Normal Registration Process
Module & Terminal
When power is applied, and an Ethernet link is established, an unregistered device will attempt to discover
and register with a local (on the same LAN) iPECS system. The Module or terminal will send a registration
request to the assigned IP address of the iPECS system (UCP). If no response is received, the device will
generate a Multi-cast discovery request for registration.
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