Instruction manual

Hardware and Endpoints
INTER-TEL
®
5000 ADMINISTRATOR GUIDE – Issue 2.3, September 2007
Battery Packs and Chargers
Page 85
Battery Packs and Chargers
Models 8664 and 8665 require a charged battery pack to operate. The Nickel Metal Hydride
(NiMH) rechargeable battery pack needs to be charged periodically. A charged battery pack
provides four hours of talk time or 80 hours of idle time. To save battery power, instruct the
user to place the endpoint in idle mode at the end of every call.
When the charge on the battery pack is low, the battery icon is displayed. The user will also
hear a soft beep through the earpiece every six seconds when the battery is low. When the bat-
tery pack is critically low, the endpoint will not work until the battery pack is charged.
Power Supplies
Each SIP and IP endpoint must use a compatible power supply. Because there are many power
supply options, contact your authorized Inter-Tel equipment provider when selecting a power
supply for an IP or SIP endpoint.
IP Endpoint Limitations
SIP and IP endpoints:
• Do not have a secondary voice path and consequently cannot support the Off-Hook
Voice Announce (OHVA) feature.
• Cannot use a PCDPM or MDPM. See “Digital Endpoint Data Port Modules” on
page 102.
• Do not support full DSS/BLF units.
• Do not support Desktop Open Architecture Interface (OAI) applications.
• Do not support the Agent Help, Record-A-Call, and Station Monitor features while
using P2P audio. See “System Features” on page 105.
Peer-to-Peer Audio for IP and SIP Endpoints
The P2P audio feature allows certain IP and SIP endpoints to transmit and receive audio
directly with each other rather than through the Inter-Tel 5000 Base Server. The P2P feature
reduces delay and packet loss for IP and SIP endpoints.
Endpoints that support P2P audio include:
• AudioCodes™ MP-104 MGCP gateway
• ITP endpoints, except the IP SoftPhone
• Multi-Protocol endpoints
Calls between IP and SIP endpoints that are members of separate Network Groups are routed
through the Inter-Tel 5000 Base Server and do not use P2P.
The Network Group Diagnostics feature allows a system administrator to verify that the Net-
work Groups are programmed correctly. For instructions on how to use the Network Group
Diagnostics feature, see page 59.