Administrator’s Guide Addendum for the Polycom VVX 1500 Business Media Phone

 

 

 

 

 

 

Effective

 

 

 

 

Sample

 

audio

Algorithm

MIME Type

Ref.

Bit Rate

Rate

Frame Size

bandwidth

G.729AB

G729

RFC 1890

8 Kbps

8 Ksps

10ms - 80ms

3.5KHz

 

 

 

 

 

 

 

Lin16

L16/8000

RFC 1890

128 Kbps

8 Ksps

10ms

4 KHz

 

L16/16000

 

256 Kbps

16 Ksps

 

8 KHz

 

L16/32000

 

512 Kbps

32 Ksps

 

16 KHz

 

L16/44100

 

705.6 Kbps

44.1 Ksps

 

22.05 KHz

 

L16/48000

 

768 Kbps

48 Ksps

 

24 KHz

 

 

 

 

 

 

 

Siren14

SIREN14/

SIREN14

24 Kbps

32 Ksps

20ms - 80ms

14 KHz

 

16000

 

32 Kbps

 

 

 

 

 

 

48 Kbps

 

 

 

 

 

 

 

 

 

 

 

Note

The network bandwidth necessary to send the encoded voice is typically 5-10%

 

 

 

(confirm number) higher than the encoded bit rate due to packetization overhead.

 

 

 

For example, a G.722.1C call at 48kbps consumes 5x kbps of network bandwidth.

 

 

 

 

 

 

 

 

Configuration changes can performed centrally at the boot server:

 

 

 

 

Central

 

Configuration file:

Specify codec priority, preferred payload sizes, and jitter buffer tuning

(boot server)

 

sip.cfg

 

parameters.

 

 

 

 

For more information, refer to Codec Preferences <codecPref/>

 

 

 

 

on page 1-17 and Codec Profiles <audioProfile/> on page 1-18.

 

 

 

 

 

Digital Picture Frame

A slide show of multiple personal images stored on a USB flash drive can be displayed on the Polycom VVX 1500 phone during the idle mode. The supported formats include JPEG, BMP, and PNG. The maximum image size is 9999x9999. A maximum of 1000 images can be displayed and these must be stored in a directory of the USB flash drive that you create.

 

Note

Although 9999x9999 images are supported, progressive/multiscan JPEG images

 

 

 

are not supported at this time no matter their resolution.

 

 

 

 

 

 

 

 

Configuration changes can be performed centrally at the boot server:

 

 

 

 

Central

 

Configuration file:

Turn this feature on or off and configure how it appears.

(boot server)

 

sip.cfg

 

For more information, refer to Feature <feature/> on page 1-22

 

 

 

 

For more information, refer to User Preferences <up/> on page

 

 

 

 

1-24.

 

 

 

 

 

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Page 353
Image 353
Polycom 1725-11530-310 manual Digital Picture Frame, On page 1-17 and Codec Profiles audioProfile/ on