Polycom IP 320 Administrator's Manual page 423

Administrator's Guide Addendum for the SoundStation IP 5000 Phone
New or Changed Features
Distribution Zip File
Corporate Directory
Single Registration
Audio Codecs
Algorithm MIME Type
G.711-law PMCU
G.711a-law PCMA
G.722 G722/8000
G.729AB G729
iLBC iLBC
Note
2
As well as the sip.ld file in the archive, there is a separate file for the
SoundPoint IP 5000 conference phone called 3111-30900-001.sip.ld .
The SoundStation IP 5000 can be configured to interface with a corporate
directory that supports the Lightweight Directory Access Protocol (LDAP)
version 3. A license key is required and can purchased through a Certified
Polycom Reseller.
The SoundStation IP 5000 phone supports a single registration.
When the phone is unable to register with the call control server, the icon
is shown (outline). Once the phone is registered, the icon
shown (solid).
The following table summarizes the SoundStation IP 5000 phone's audio codec
support:
Ref. Bit Rate
RFC 1890 64 Kbps
RFC 1890 64 Kbps
RFC 1890 64 Kbps
RFC 1890 8 Kbps
RFC 3951 13.33Kbps
15.2Kbps
The network bandwidth necessary to send the encoded voice is typically 5-10%
higher than the encoded bit rate due to packetization overhead. For example, a
G.722.1C call at 48kbps consumes 5xkbps of network bandwidth (one-way audio).
Two-way audio would take over 100kbps.
Sample
Rate Frame Size
8 Ksps 10ms - 80ms
8 Ksps 10ms - 80ms
16 Ksps 10ms - 80ms
8 Ksps 10ms - 80ms
8 Ksps 30ms - 60ms
20ms - 80ms
is
Effective
audio
bandwidth
3.5KHz
3.5KHz
7 KHz
3.5KHz
3.5KHz