The Cisco 7905 IP Phone is a cost-effective, entry-level,
single-line telephone that operates on IP-based telephony networks.
The Cisco 7905 IP Phone is easily installed by an end user.
It provides access to IP telephony applications and makes
use of broadband pipes that are deployed through digital subscriber
line (DSL), fixed wireless, cable modems, and other Ethernet
connections.
(Note this phone uses H.323 as apposed to the “skinny”
protocol used by the current IP phones and requires the next
release (3.3) of the Call Manager due to be released before
the end of the year)
1. LCD screen to provide status messages.
2. Signaling protocol: H.323.
3. Soft keys. These
keys vary, depending on current phone activity.
4. Navigation button
to scroll through text and navigate the LCD display.
5. Services
button to provide access to phone services.
6. Hold button.
7. Dial pad.
8. Volume button for handset or speaker (depending
on which is active). Also controls the ring volume when the
handset is on-hook.
9. Handset with indicator light that blinks
for incoming calls.
The Cisco IP Phone 7905 supports
the following software features:
Protocols:
- Cisco Discovery Protocol (CDP)
- Domain Name System (DNS)
- Dynamic Host Configuration Protocol (DHCP)
- H.323
- Internet Control Message Protocol (ICMP)
- Internet Protocol (IP)
- Real-Time Transport Protocol (RTP)
- Simple Network Time Protocol (SNTP)
- Transmission Control Protocol (TCP)
- Trivial File Transfer Protocol (TFTP)
- User Datagram Protocol (UDP)
Basic Services:
- Provisioning through LCD screen menus, TFTP server, or
web browser
- IP address assignment—DHCP or manual static IP address
- Configurable type of service (ToS) bit for quality of
service (QoS)
- Configurable ring
- Configurable tone (dial tone, ringback tone, busy tone,
alert tone, reorder tone)
- G.711 u-law and A-law support
- Voice-activity-detection (VAD) and comfort-noise-generation
(CNG) support for G.711 u-law and G.711 A-law, and support
for G.729 Annex B
- Out-of-band dual-tone multifrequency (DTMF) relay support
- Dynamic jitter buffer for voice packets
Supplemental Services:
- Call waiting support
- Calling line ID presentation/rejection (CLIP/CLIR) support
- Three-way calling support
- Call hold support
For more information about Cisco's IP Phone 7905 and
what IP Telphony can do for your business, email technical@cisilion.com
or phone us on +44 (0)870 15 25 750
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