Pocket Gphone 3.0

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Pocket Gphone 3.0
Pocket Gphone allows Microsoft PocketPC OS based
devices for feature rich voice communications.
Voice calling, voice chat and voice messaging can
be added to networked PocketPC solutions as
either a stand-alone voice application, or as a
voice complement to data applications with
PocketGphone from VLI. With the proliferation of
802.11 wireless data networks, 802.11 enabled
PocketPC devices with Pocket Gphone can conduct
voice conversations in the enterprise, home, or
public hot spots. PocketGphone brings full
duplex SIP compliant VoIP to resource-constrained,
IP based mobile consumer electronics devices
based on PocketPC and other handheld operating
systems. PocketGphone has very low software
latency, requires minimal bandwidth and supports
NAT environments.
PocketGphone Features Market Benefits
Low software latency of 50 ms Voice quality better than cellular in LAN, WAN environments
Requires only 32 kbps bandwidth (with GSM6.10 codec) High quality communications in constrained networks Minimal network impact
Full duplex voice Two way calling to match POTS, cellular experience
SIP compliant Works with SIP gateways to PSTN
Peer to Peer topology Toll bypass direct client to client connections Low network impact
Works on most PocketPCs Downloadable to off-the-shelf devices
NAT support Can use in dynamic IP environments
GSM 6.10, G.711, G.729a codecs supported Flexibility to choose the Codec optimized for your application/network
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SIP Mobile VoIP Client Pocket Gphone
What is PocketGphone? PocketGphone is a VoIP
client that adheres to the Session Initiated
Protocol (SIP) standard for voice
communications on IP networks. SIP enables
network managers to connect the VoIP world to the
Public Switch Telephone Network (PSTN) through
SIP/PSTN gateways. Pocket Gphone has been
optimized for the resource constraints of
PocketPC devices and is based on the proprietary
Gphone Engine. The Gphone Engine has a footprint
of only 40kb, requires only 32kbps bandwidth and
adds an industry leading low of 50 ms of software
latency while enabling full duplex voice
communication. Gphone and PocketGphone have been
downloaded by more than 5 million users since
2001. There are more than 100,000 active users
of Gphone products.

• Gphone Engine
• Gphone solutions are based on VLIs propriety
  Gphone Engine which enables high quality, full
  duplex VoIP on resource constrained devices.
• 1. Minimal processor load
• 2. Small Footprint (just 40k bytes)
• 3. Low software latency (less than 50 ms) with
  high quality full duplex voice communication
• Common problems with other VoIP solutions
• Large memory footprint
• High latency, sometimes worse than cellular
• High CPU and power needs
• Limited to only one device platform
• Cant work in NAT environments
• The Gphone Engine has been designed from the
  ground up for IP based mobile consumer
  electronics devices.

11 Functions for Pocket Gphone 3.0 1. Full
duplex voice communication 2. Call any
traditional telephone using Gphone Calling
Service 3. Use the Gphone Buddy Service to
initiate communications 4. Send and receive
files (cross platform) 5. Text chat 6. Manual
TCP and UDP port configuration 7. Choice of GSM
6.10 or the industry standard G.711 codec 8.
Voice mute 9. Adjustable microphone volume 10.
Usable within shared networks 11. Voice messaging
(Fall 2003)
Client / Server architecture concept chart
White portion provided by underlying OS

• Also available from VLI Gphone Buddy Server
  Gphone Messaging Server
• Gphone Buddy Server adds directory services,
  seamless IP connections, and presence management
  to Gphone clients for enterprises and service
  resellers
• Gphone Messaging Server (GMS) provides IP based
  voice message services to Gphone users
• GMS in development G.729a codec requires
  separate license fee

• PocketGphone System Requirements
• CPU Strong ARM 206 mhz or above
• OS Microsoft Pocket PC 2002/WinCE
• Network 32Kbps or faster connection
• External headphone suggested depending on device
• see www.vl-inc.us for devices tested

About VL Inc. Originally founded in Tokyo, Japan
as Gtony in 2000, VLI is now headquartered in
Mountain View, CA. VLI is a world leader in SIP
compliant VoIP software and services for mobile
consumer electronics devices such as PDAs. Five
million copies of the companys peer-to-peer
client software has been distributed and there
are more than 100,000 active users of the Gphone
products. VLIs current product line includes
the award winning PocketGphone client software
for PDAs as well as WinCE Gphone and Gphone for
Palm OS. For more information on the company
please visit the website or send an email to
info_at_vliusa.com.
VL Inc. US Headquarter 1758A North Shoreline
Blvd., Mountain View, California 94043
USA TEL [phone] FAX [phone] www.vliu
sa.com Info_at_vliusa.com
VL Inc. Japan Liaison Office Mitsui Bldg,2F
1-3-1Kanda-Ogawamachi,Chiyoda-ku, Tokyo 101-0052
Japan Tel [phone] Fax
81-3-52824151 www.vl-inc.us/jp/