ClearOne MAXAttach IP - Manual (Page 25)

22 Technical Support: 800.283.5936
• Phone number: Enter the phone number associated with the MAX IP unit.
• Phone name: Enter the name of the MAX IP unit - usually associated with the room or office it’s setup in.
• Registration timeout: Enter the value (in seconds) your phone is to refresh its registration to the SIP proxy server.
The default value is 3600.
• SIP Proxy Type: Select the appropriate radio button to define the specific proxy type for the system. If unsure,
select the Generic Proxy option.
• Select Primary/Secondary Proxy: If a primary and/or secondary proxy is defined, select the checkbox next to the
Select Primary Proxy and/or Select Secondary Proxy option as needed.
• Enable SIP Proxy registration: Click this checkbox to enable SIP proxy registration or uncheck it to disable it. SIP
proxy registration is the connection to the SIP proxy server in a SIP-based IP telephony environment that handles call
control and serves as the central repository for address translation (name to IP address). When SIP proxy registra-
tion is enabled, the Proxy server IP address/URL and Proxy port fields are active. Enter the required IP address/
URL of the SIP proxy server and the number of the SIP proxy port. When SIP proxy registration is disabled, these
fields are inactive.
• SIP Credentials: Click this checkbox to enable SIP Credentials or uncheck it to disable SIP Credentials. (SIP Cre-
dentials are required if the proxy requires it.) The SIP Credentials verifies the username and password as entered in
the Authorization user and Authorization password fields. These fields are active only when the SIP Creden-
tials checkbox is enabled and can thus be modified. When the SIP Credentials checkbox is disabled these fields
are inactive.
• Enable Outbound Proxy: Click this checkbox to enable the outbound proxy server or uncheck it to disable it. The
outbound proxy is the IP address to use for outbound calls if the address is different from the registration address.
When enabled, the Outbound proxy server IP address/URL and Outbound proxy port fields are active. Enter
the required IP address/URL of the outbound proxy server and the number of the outbound proxy port. When dis-
abled, these fields are inactive.
• SIP Transport: Click the radio button next to the type of SIP transport you wish to use and the number of the listen
port in the Listen port field for the specified transport. UDP (User Datagram Protocol) is a protocol within the
TCP/IP protocol suite that is used in place of TCP (Transmission Control Protocol) when a reliable delivery is not
required. UDP requires less processing of packets and is connectionless, meaning it does not require a handshake
to start a session like TCP does. Therefore, it is faster and is often used with VoIP because there is no time to re-
transmit erroneous or dropped packets. The default port is 5060.
• Enable TLS: In order to utilize Transport Layer Security (TLS), the Private Key, Local Certificate and Certifi-
cate Authority (CA) certificates need to be created and available on the server. Check with the local IT Administra-
tor to verify prior to enabling TLS. Click on the Enable TLS checkbox to access the TLS settings fields. The TLS port
is set by default. Click on the respective Browse buttons and navigate to the appropriate location(s) on the server to
locate the three certificate files. When located, click on the Upload button to enable TLS.
• DTMF Settings: Click the Enable DTMF Relay checkbox to enable the DTMF (Dual Tone Multi-Frequency) re-
lay or uncheck the box to disable it. The DTMF relay allows dialing information to be sent for gateways that need to
receive standard audio. DTMF relay provides a way to transport DTMF digits in an RTP voice stream when the voice
codec cannot accurately reproduce the digits, or the sender or receiver DSP (Digital Signal Processor) cannot
perform digit sampling. Each DTMF digit is encoded as an RTP-named event and sent as RTP packets over UDP.
The packets are encoded with a payload type which is negotiated during connection establishment. When enabled,
the Payload field is active. Enter the desired payload: values range from 96 to 127. When Enable DTMF Relay is
disabled, this field is inactive.
Click the Apply button to activate any changes made to the SIP Configuration screen.