Specifications

ShoreTel Architecture Media
1
ShoreTel 14 Maintenance Guide 26
IP Phone to Voicemail
Voicemail media from IP phones and endpoints goes directly to voicemail. IP phones at remote sites
without a server send voicemail media to a ShoreTel voice switch, which then sends it to voicemail.
This is done in order to use G.729 streams for voicemail across the WAN.
Voicemail Between Servers
When recorded voicemail messages are transferred between servers, they are sent using SMTP.
Figure 6: Media Traffic in a ShoreTel System
Headquarters Site
Regional Site
Small Office / Home office
Teleworkers
= SMTP (Voice Messages Sent as Email Attachments)
= Remote IP Phone to Voicemail
= IP Phone to Voicemail
= IP Phone to Analog Phone
= IP Phone to IP Phone
Legend
ShoreTel Service
Appliances
ShoreTel Voice Switch
ShoreTel Voice Switch
ShoreTel Voice Switch
ShoreTel Voice Switch
ShoreTel Voice Switch
ShoreTel Voice Switch
ShoreTel Voice Switch
Soft
Phone
OR
IP Phone
IP PhoneIP Phone
Analog PhoneIP Phone
Soft
Phone
IP PhoneIP Phone
Analog PhoneAnalog Phone
ShoreTel
Director
Desktop/
Browser
Clients
Desktop/
Browser
Clients
Desktop/
Browser
Clients
Desktop/
Browser
Clients
Desktop/
Browser
Clients
DRS
CAS/IPDS
Voicemail
Media Driver System
Softswitch
TMS/DTAS
Remote Server
DRS
CAS/IPDS
Voicemail
Media Driver System
Softswitch
TMS/DTAS
Remote Server
Media Driver System
Voicemail
Distributed Routing
Service (DRS)
Client Application Server
(CAS) / IPDS
Internet Information
Server (IIS)
Softswitch
Monitoring Service
CDR
Database
Monitoring
Database
Configuration
Database
Data Services
Telephony Management
Service (TMS) / Distributed
Telephony Application
Service (DTAS)
HQ Server