Mitel Fax Memo Manual

12.3 SS7 Integration 
Through its SS7 integration, the Series 6 platform also supports the SS7 out-of-band common 
channeling protocol for data and voice communications between ISDN switches over TlEl 
lines. The SS7 integration terminates the voice channels on 30-channel PCM (El) 
trunks 
(CCITT Rec. G.704). In addition, the SS7 integration provides out-of-band call setup and 
teardown information to the Series 6 platform. The Series 6 system provides native on-board 
SS7 digital support. Centigram’s...

Section 13: Architecture 
The Series 6 platform is a modular, open, standards-based communications server that allows 
users to make, send, receive, and answer voice, fax, and e-mail messages from a single mailbox, 
24 hours a day, by using a touch-tone telephone or a PC. In addition, users can access any 
information service-in any format (voice, text, image )--from the same mailbox. The system 
requires no special environmental conditions, and is compatible with virtually every PBX and 
switching...

hard disk drives, for example, have a minimum of 150,000 hours rated MTBF; field performance 
is far higher. 
The Series 6 system’s design uses an Industry Standard Architecture (ISA) backplane bus, a 
Multi-Vendor Integration Protocol (MVIP) circuit switching bus, and either an Integrated Drive 
Electronics (IDE) or a Small Computer Systems Interface (SCSI) drive hardware interface. 
These cormnon protocols allow our system to accept new technology as it is developed. We have 
been able to add digital...

Dktributed Processing 
The Series 6 system’s MESA architecture emphasizes distributed processing for the fastest 
throughput and most efficient use of system resources. Processing occurs at four levels: 
1. Module level 
2. Irma-module communication 
3. Line card level 
4. Disk drive interface 
a At the module level, the main processor controls multiple port configurations. The 
module processor controls trafYic and tracks resource allocati?ns for all internal 
processing interactions. MESA-Link, an...

The CPU locates the system greeting on the hard disk and transfers the data from the hard disk 
to buffers on the line card. This buffer is divided into three rotating buffers that fill and empty in 
sequence, ensuring that the user never hears a pause in the playback of the greeting. 
The caller enters the mailbox number in response to the system greeting. The line card 
recognizes the DTMF input and sends it to the CPU. The CPU interprets the DTMF tones as a 
mailbox number and locates the personal...

Centrat Processing Unit (CPV) 
The CPU subsystem consists of an80486- or Pentium-based central processor board, with 16-64 
MB of RAM. The board plugs into the ISA backplane. In the Model 70 system, the CPU is on 
the motherboard. Line cards, service cards, and communications cards also plug into the ISA 
backplane, which provides the interface with the CPU. There are 13 ISA-compatible available 
slots for each Model 640 module, 11 available slots in the Model 1201, 10 available slots in the 
Model 12OS,...

Power Supply Subsystem 
The Model 640 has separate power supplies for the CPU and disk storage subsystems. There are 
two options for both: 
l A 50- to 60-Hz, 1 lo-240 VAC input 500W (nominal), auto-selectable, quadruple- 
output (+5, +12, -12, and -48 VDC) switching power supply plus a 150W disk storage 
module power supply. 
l A -48 VDC input, 500W (nominal), quadruple-output switching power supply (+5, 
+12, -12, -48 VDC) switching power supply plus a 150W disk storage module power 
supply. 
The Model...

Line Cards 
Line cards provide the interface between the Series 6 system and telephone lines from a PBX or 
central office trunk. Line interfaces can be either analog or digital trunks. (See Appendix III for 
a list of line card interfaces supported by the Series 6 platform). The phone line exceptions 
program and the algorithms for digitization and speech compression are stored on the line card. 
Line cards monitor all of the telephony events that occur on the network. The line card runs 
software that...

Digital 
-Sianalina: A digital transmission link standard used by the United States, Canada., Hong 
Kong and Japan. A T-l link has 24 channels that operate at 64Kbps each for a total of 1.544 
megabits per second capacity. 
E-1 S@=rling: The European Digital transmission link. An E-l has 30 channels for transmitting 
voice dam at 64Kbps per channel, plus a 64Kbps for signaling and a 64 Kbps channel for framing 
and maintenance. The E-l carries information at a rate of 2.048 megabits per second. 
Line...

l Speech and silence detection during recording-These parameters work together to 
detect speech pauses: They stop the system recording when a pause has occurred and 
restart the recording process once speech has resumed. This function can be enabled 
or disabled. 
Serial Ports 
The Series 6 platform supports serial ASCII access for maintenance via any of the serial ports. 
An outboard modem is used for remote maintenance functions and is connected via a serial port. 
The CPU in each model supports two...