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Telephone switches route calls through the PSTN (Public Switched Telephone Network).
Telephone switches in use include:
SWITCH VENDOR TYPE DESCRIPTION
|
1AES |
Lucent |
Analog |
No. 1A ESS |
|
1ES |
Lucent |
Analog |
No. 1 ESS |
|
2BES |
Lucent |
Analog |
No. 2B ESS |
|
2ES |
Lucent |
Analog |
No. 2 ESS |
|
3ES |
Lucent |
Analog |
No. 3 ESS |
|
3XB |
Lucent |
E/M |
No. 3 Cross-Bar |
|
4ES |
Lucent |
Digital |
No. 4 ESS |
|
5AXB |
Lucent |
E/M |
No. 5A Cross-Bar |
|
5ES |
Lucent |
Digital |
No. 5 ESS |
|
5ORM |
Lucent |
Digital |
Optical Remote Module |
|
5RSM |
Lucent |
Digital |
Remote Switching Module |
|
5XB |
Lucent |
E/M |
No. 5 Cross-Bar |
|
AXE10 |
Ericsson |
Digital |
Stand Alone or Host |
|
AXRSS |
Ericsson |
Digital |
Remote |
|
DGTL |
|
Digital |
Generic Digital Switch |
|
DMS1/200 |
Nortel |
Digital |
DMS 100/200 Local Switching System |
|
DMS10 |
Nortel |
Digital |
DMS 10 Carrier Class Switching System |
|
DMS100 |
Nortel |
Digital |
DMS 100 Local Switching System |
|
DMS200 |
Nortel |
Digital |
DMS 200 Local Switching System |
|
DMS250 |
Nortel |
Digital |
DMS 250 Long Distance Tandem Switching System |
|
DMS500 |
Nortel |
Digital |
DMS 500 Local and Long Distance Switching System |
|
DPN |
Nortel |
Packet |
DPN Packet Switch |
|
EDX |
Siemens |
Packet |
Packet Switch |
|
NC23 |
NEC |
E/M |
NEC Cross-Bar |
|
NEAX61E |
NEC |
Digital |
NEC switch |
|
RLCM |
Nortel |
Digital |
Rmote Line Conc Module |
|
RLCM-10 |
Nortel |
Digital |
Remote Line Conc Module |
|
RLM |
Nortel |
Digital |
Remote Line Module |
|
RSC |
Nortel |
Digital |
Remote Switching Center |
|
RSCI |
Nortel |
Digital |
ISDN RSC |
|
RSLE |
Nortel |
Digital |
Remote Subscriber Line Equipment |
|
RSM |
Lucent |
Digital |
Remote Switching System |
|
RSS |
Lucent |
Analog |
Remote Switching System |
|
RSU |
|
Digital |
Generic Remote Switching Unit |
|
SXS |
Lucent |
E/M |
Step by Step |
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