Understanding the Requirements for Toll-Quality Voice Chapter 9: Network Requirements and Preparation
100
9.4.2.1 Voice Encoding
Within a site, linear broadband encoding is recommended, since bandwidth in the LAN is
inexpensive and readily available. Between sites, G.729a is recommended because it uses
the least amount of bandwidth. The linear codec provides slightly higher voice quality than
G.711, but should not be used if there are any bandwidth concerns.
If you select linear broadband or linear encoding, end points that do not support either
codec will negotiate for the highest quality codec for both end points, and G.711 is the only
high-quality codec shared by all end points.
9.4.2.2 ShoreTel TCP and UDP Port Usage
ShoreTel 8 uses the following TCP and UDP ports for traffic.
Linear
Broadband Linear G.711 ADPCM G.729a
Sample rate 16 KHz 8 KHz 8 KHz 8 KHz 8 KHz
Effective sample size 16 bits 16 bits 8 bits 4 bits 1 bit
Data rate 256 Kbs 128 Kbps 64 Kbps 32 Kbps 8 Kbps
Supported end points ShorePhones:
IP110/115/210/
212k/230/530/
560/560g
All ShoreGear
ShorePhones
All ShoreGear
ShorePhones:
IP110/115/210/
212k/230/530/
560/560g
All ShoreGear All ShoreGear
ShorePhones:
IP110/115/210/
212k/230/530/
560/560g
Table 9-2 Voice Encodinga
a. Voice Activity Detection (VAD) / Silence Suppression is not supported.
Originating
Device Traffic Type
Destination Device
Switch IP Phone Desktop SoftPhone DVM Server
HQ/Director
Server Other
Switch Call Control UDP 5440
Location
Service
UDP 5441
Call Control
UDP 5443
Bandwidth
Manager
UDP 5445
Admission
Control
UDP 2427
MGCP
UDP 2427
MGCP
TCP 1024-65535
RPC - NCC
UDP 2727
MGCP - Media
proxy
UDP 5440
Location Service
UDP 5441
Call Control
UDP 5442
DRS
UDP 5443
Bandwidth
Manager
UDP 5445
Admission
Control
UDP 5446
DRS keepalive
TCP 1024-65535
RPC - NCC
UDP 2727
MGCP - Media
proxy
UDP 5440
Location Service
UDP 5441
Call Control
UDP 5442
DRS
UDP 5443
Bandwidth
Manager
UDP 5445
Admission
Control
UDP 5446
DRS keepalive
UDP 5060
SIP
Switch Media Stream UDP 5004
RTP
(dynamic:
1024-65535)
UDP 5004
RTP
(dynamic:
1024-65535)
UDP 5004
RTP
(dynamic:
1024-65535)
UDP 5004
RTP
(dynamic: 1024-
65535)
UDP 5004
RTP
(dynamic: 1024-
65535)
UDP 1024-
65535
RTP - for
SIP
Switch RPC
Connection
Negotiation
TCP 111
RPC Port Mapper
UDP 111
RPC Port Mapper
TCP 111
RPC Port Mapper
UDP 111
RPC Port Mapper
Table 9-3 Port Usage
Terms of Use | Privacy Policy | DMCA Policy
2006-2022 Rsmanuals.com