Instruction manual

Features
IP Telephony
Strata CTX General Description 10/04 77
• There is no limit to the number of IP telephones that can be configured on Strata CTX systems.
All telephones in the system can be IP telephones up to the system’s maximum station capacity
(see
Table 9 on page 23).
• Terminal Authentication is an option that allows a particular IP telephone to keep a reserved
directory number on a CTX system. This prevents IP telephones from logging in with another
telephone’s directory number if the other telephone has been disconnected to be taken to
another location. This feature uses the unique Media Access Control (MAC) address that is
permanently coded into each telephone network interface circuit. The unique MAC address of
the telephone is assigned to a particular directory number in system programming.
• IPT firmware can be updated locally or remotely using CTX WinAdmin. This enables service
personnel to update IP equipment with new features and enhancements as they become
available. Updates require a brief interruption of IP telephone operation (a few minutes).
• IP telephones have a discovery retry timer to prevent network congestion when many IP
telephones request services simultaneously. If network congestion is detected, the telephone
will pause and then retry for service.
• IP telephones have loop back and ping capabilities for maintenance and fault finding purposes.
• IP telephones support Dynamic Host Configuration Protocol (DHCP) or static IP addressing.
For a photo of the IPT1020-SD, see “IP Telephone” on page 43.
IP Add-on Module
System Availability: Strata CTX100, CTX670
A 20-button Add-on Module (DADM3120) is available for use with the IPT1020-SD IP telephone.
It looks and functions just like a DADM3020 digital Add-on Module. The DADM3120s can
connect to the IPT1020-SD IP or DKT3000-series telephones to provide 20 or 40 additional
feature or DSS/BLF buttons.
IP Interface Unit
System Availability: Strata CTX100, CTX670
The IP interface unit (BIPU-M2A) is a 16-port circuit card that installs in a slot in the Strata CTX.
The BIPU-M2A has the following attributes and capabilities:
• The BIPU-M2A can be programmed in software to activate 16 channels to interface with
IPT1020-SD telephones.
• The BIPU-M2A supports both G.711 and G.729A standard codec compressions simultaneously.
The type of compression used is set independently for each telephone in system programming
(see the “IP Telephone” section.)
• With the BIPU-M2A, the IP telephone will now work with DSL and cable routers.
The BIPU-M2A operates on the network at 10/100 Mbps and can be connected to a fast switch
router, LAN, WAN, etc. When connecting remote IP telephones to the BIPU-M2A over the
Internet, a VPN router is needed to circumvent Network Address Translation (NAT) and
firewall issues by tunneling. Otherwise, the BIPU-2MA must be configured with a public IP
address outside the network firewall.
• BIPU-M2A provides MEGACO+ mobility to enable roaming with Toshiba Mobility
Communications System (MCS) applications (available with Toshiba MCS R1.0). The
BIPU-M2 enables remote IP telephones to be connected over VPN and non-VPN IP networks.
• BIPU-M2A firmware can be updated locally or remotely using CTX WinAdmin. This enables
service personnel to update IP equipment with new features and enhancements as they become
available. Updates require a brief interruption of IP telephone operation (a few minutes).