Cisco Cisco Unified MeetingPlace Audio Server Installation Guide
Cisco MeetingServer 5.1 Installation Planning Guide
55
Cisco Systems
March 2003
Action
Description
9
9
9
9
QSIG
Coding
Format
HDB3 (strongly recommended), or
AMI
15
Framing
CRC4 checking (strongly recommended), or
Non-CRC4
Additional
Hardware
No Channel service unit (CSU) required in Europe,
because the Telco provides its own
because the Telco provides its own
8.
Modem
Requirements
Requirements
Analog telephone line, or PBX connection
Pilot number, accessible from outside
RJ-11C connector
9.
Translation Table
Translation table requirements for dialing restrictions
WARNING
: The following telephony components or services can take
from 4 to 6 weeks to order and install:
•
Network Telco Service (trunk lines, main phone number or combined
access numbers)
access numbers)
•
PBX specific hardware or software (Smart Blades, software upgrade)
•
Additional hardware (CSU, UPS)
15
If AMI is used, the number of zeros in a row may exceed the recommended Telco value of 15. This can happen if all
participants in the same meeting are on the same span. In that case, a zeros (0) pattern could be sent to all channels at
the same time, exceeding the zero’s maximum. This, in turn, can lead to meeting participants being dropped by the
Telco from the meeting. Therefore, use HDB3, if possible.
the same time, exceeding the zero’s maximum. This, in turn, can lead to meeting participants being dropped by the
Telco from the meeting. Therefore, use HDB3, if possible.