Cisco 8832 Maintenance

Mean Opinion Scores and Codecs
The voice quality metrics use Mean Opinion Score (MOS) to rate the quality. A MOS rating of 1 is the lowest
quality; a MOS rating of 5 is the highest quality. The following table gives a description of some of the codecs
and MOS scores. The phone supports all codecs. For all codecs, the phone sends the SIP Publish message.
Minimum Call Duration for
Valid MOS Value
MOSComplexity and DescriptionCodec
10 secondsA minimum value of 4.1 indicates good
voice quality.
Very low complexity.
Supports uncompressed 64
kbps digitized voice
transmission at one to ten 5
ms voice frames-per-packet.
This codec provides the
highest voice quality and
uses the most bandwidth of
any of the available codecs.
G.711
(A-law
and
u-law)
30 secondsA minimum value of 3.5 indicates good
voice quality.
Low to medium complexity.G.729A
30 secondsA minimum value of 3.5 indicates good
voice quality.
Contains the same reduced
complexity modifications
present in the G.729A.
G.729AB
Configure Voice Quality Reporting
You can enable voice quality reporting on the phone with the web interface. Each extension on a phone has
a separate voice quality report. For each extension on the phone, use the corresponding Voice Quality Report
Address field to configure the generation of voice quality report.
Procedure
Step 1 On the Phone Web page, select Admin Login > advanced > Voice > Ext x.
Where:
• Ext x = the extension number on the phone
Step 2 In SIP Settings, enter a value in the Voice Quality Report Address x field. You can enter either a domain
name or an IP address in this field.
You can also add a port number along with the domain name or an IP address in this field. If you do not enter
a port number, the value of the SIP UDP Port (5060) is used by default. If the collector server URL parameter
is blank, a SIP PUBLISH message is not sent out.
Step 3 Click Submit All Changes.
Maintenance
6
Maintenance
Mean Opinion Scores and Codecs

Cisco 8832 Specifications

General

Control type	Buttons
Display type	LCD
Product type	IP conference phone
Voice codecs	G.711a, G.711u, G.722, G.729A, G.729ab, OPUS, iLBC
Certification	CE Markings per directives 2014/30/EU and 2014/53/EU and 2014/35/EU \u2028 \u2028 UL 60950 Second Edition \u2028 CAN/CSA-C22.2 No. 60950 Second Edition \u2028 EN 60950 Second Edition (including A11 and A12) IEC 60950 Second Edition (including A11 and A12) EN 60950-1 IEC 60950-1 AS/NZS 60950.1 47CFR Part 15 (CFR 47) Class B AS/NZS CISPR32 Class B \u2028 CISPR32 \u2028Class B EN55032 \u2028 Class B EN 300 386 ICES003 Class B \u2028 VCCI Class B \u2028 EN61000-3-2 \u2028 EN61000-3-3 \u2028 EN61000-4-2 IEC61000-4-2 EN61000-4-3 IEC61000-4-3 EN61000-4-6 IEC61000-4-6 KN22 Class B \u2028 EN55024 \u2028 CISPR24 \u2028 KN24 Armadillo Light AS/ACIF S004 NZPTC220
Product color	Charcoal
Frequency range	100 - 20000 Hz
Built-in display	Yes
Display diagonal	3.9 \
Languages support	ARA, BUL, CAT, CHI (SIMPL), CHI (TR), CZE, DAN, DEU, DUT, ENG, ESP, EST, FIN, FRE, GRE, HEB, HUN, ITA, JPN, KOR, LAT, LIT, NOR, POL, POR, RUM, RUS, SER, SLK, SLV, SWE, TUR, UKR
Display resolution	480 x 128 pixels
Security algorithms	EAP-FAST, EAP-TLS, SHA-256, SSH
Ethernet LAN data rates	10, 100 Mbit/s
Ethernet interface type	Fast Ethernet
Supported network protocols	IPv4, IPv6, SIP, SDP, UDP, DHCP, GARP, TFTP, HTTPS, RTP, RTCP, Cisco Discovery Protocol, LLDP
Cables included	USB
Storage temperature (T-T)	-10 - 60 °C
Operating temperature (T-T)	0 - 40 °C
Storage relative humidity (H-H)	10 - 95 %
Operating relative humidity (H-H)	10 - 90 %
USB connector type	USB Type-C
RJ-45 ports quantity	1

Weight and Dimensions

Width	278 mm
Height	61 mm
Weight	1850 g