Specifications

Configuring Voice Settings Managing Cellular Operators
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ShoreTel Mobility Router Administration Guide 159
You typically do not need to modify the SIP server settings. An example of when you might need to
modify SIP server settings is if you need to change the port numbers on which the Mobility Router
listens to UDP, TCP, or TLS traffic.
To configure SIP server settings:
1. Select Configuration > Voice > Advanced > SIP Server. The SIP Server page displays.
2. In the UDP Port field, type the port number on which the Mobility Router listens for UDP traffic.
The UDP port can be between 1024 through 49151. The default UDP port is 5060.
3. In the TCP Port field, type the TCP port number on which the Mobility Router listens for TCP
traffic. The TCP port can be between 1024 through 49151. The default TCP port is 5060.
4. In the TLS Port field, type the TLS port number on which the Mobility Router listens for TLS traffic.
The TLS port can be between 1024 through 49151. The default TLS port is 5061.
5. In the Registration Refresh Interval on Wi-Fi field, type the interval at which the client on Wi-Fi
refreshes its registration with Mobility router. The default is 240 seconds.
6. In the Registration Refresh Interval on Cell-Data field, type the interval at which the client on the
cellular data network refreshes its registration with Mobility router. The default is 480 seconds.
7. In the SIP Initial Retransmit Timer (T1) For Local Wi-Fi field, type the time at which the Mobility
Router retransmits the SIP request messages towards the client when it is in local Wi-Fi network.
The default is 750 ms.
8. In the SIP Initial Retransmit Timer (T1) For Remote Wi-Fi field, type the time at which the
Mobility Router retransmits the SIP request messages towards the client when it is in remote
(SRV) Wi-Fi network. The default is 1000 ms.
9. In the SIP Initial Retransmit Timer (T1) For Cellular Data field, type the time at which the
Mobility Router retransmits the SIP request messages towards the client when it is in cellular data
network. The default is 2500 ms.
10. To save your changes, click Apply.
If you make any changes on this page, restart the SIP service.
Managing Cellular Operators
The ShoreTel Mobility solution uses cellular service to extend coverage outside of the enterprise Wi-Fi
area. The ShoreTel Mobility solution is carrier-neutral and works with any cellular network. Currently, it
is thoroughly tested on mobile devices with GSM/GPRS/UMTS cellular services.
To provide seamless transition between cellular and Wi-Fi networks, some timer values used by the
Mobility Router and the ShoreTel Mobility Client might need to be fine-tuned for each cellular network.
By default, the cellular service providers currently certified are defined on the Mobility Router. You can
add new cellular operators or change the settings of an existing operator.
Perform the following tasks to manage cellular operators:
 “Adding a Cellular Operator” on page 160