Cisco 6821 Administration Guide

Table 21: Call Statistics Items for the Cisco IP Phone
DescriptionItem
Type of received voice stream (RTP streaming audio
from codec):
• G.729
• G.722
• G.711 mu-law
• G.711 A-law
• OPUS
• iLBC
Receiver Codec
Type of transmitted voice stream (RTP streaming
audio from codec):
• G.729
• G.722
• G.711 mu-law
• G.711 A-law
• OPUS
• iLBC
Sender Codec
Size of voice packets, in milliseconds, in the receiving
voice stream (RTP streaming audio).
Receiver Size
Size of voice packets, in milliseconds, in the
transmitting voice stream.
Sender Size
Number of RTP voice packets that were received since
voice stream opened.
This number is not necessarily identical to
the number of RTP voice packets that were
received since the call began because the
call might have been placed on hold.
Note
Rcvr Packets
Number of RTP voice packets that were transmitted
since voice stream opened.
This number is not necessarily identical to
the number of RTP voice packets that were
transmitted since the call began because
the call might have been placed on hold.
Note
Sender Packets
Cisco IP Phone 6800 Series Multiplatform Phones Administration Guide
207
Phone Troubleshooting
Call Statistics Fields

Cisco 6821 Specifications

General

Resolution	320 x 240 pixels
Speakerphone	Yes
Headset Port	Yes
Protocols	SIP
USB Port	No
Wireless	No
Bluetooth	No
Video Support	No
Conference Capabilities	Yes
Wall Mountable	Yes
Display	3.5-inch grayscale
Ethernet	10/100 Ethernet
Line Keys	2
PoE	IEEE 802.3af Power over Ethernet (PoE)
Codecs	G.711, G.722, G.729, iLBC
Weight	2.0 lb (0.91 kg)