Carrier Access Multi-Service Router (MSR) Card MSR/Adit 3K GUI - Manual (Page 216)

6-10 Adit 3000 (Rel. 1.6) and MSR Card (Rel 2.0) GUI
Voice over IP
IP Telephony
Field Definition
SIP Interop
Calling Feature Mode Determines where the intelligence for the calling features will lie, offering a choice
between server-based (Info) and device-based (local) features.
Info - This selection is used with BroadSoft 11.1 Info Mode Proxy.
Note: On a BroadSoft server, the Adit must be configured as “Generic SIP
Standard (Proxy Address)”.
Local - Default.
Privacy Mode None - Disables the Privacy Mode. Default.
RFC-3325 - Enables support for RFC 3325, as supported on the Sylantro
Application Server.
Enable PRACK Allows the user to enable/disable Provisional Acknowledgement (PRACK), as per
RFC 3262. Default is Disabled.
SIP Early Media
Early Media Early Media is the ability of two SIP user agents to communicate before a SIP call
is actually established. Support for early media is important largely for
interoperability with the PSTN.
This field allows the user to control which 18n response is sent by the Adit on calls
from SIP-to PRI/CAS.
Auto -
Send 180/183, based on if in-band call progress tones are available.
180 - Always sent 180, with or without SDP.
The 180 Ringing message is a provisional or informational response used to
indicate that the INVITE message has been received by the user agent and that
alerting is taking place.
183 - Always sent 183, with or without SDP.
The 183 Session Progress response indicates that information about the call state is
present in the message body media information.
Note: Both 180 and 183 messages may contain SDP, which allows an early media
session to be established prior to the call being answered.
SIP Session Timer
Mode Disabled - System shall not initiate Session Timer procedures, nor respond to a
Session-Expires request. Default.
Supported - System will respond to a Session-Expires request from a remote
proxy or UAC.
Requested - System shall initiate Session Timer procedures in outgoing initial
INVITEs by including a Session-Expires header.
Refresher None - No refresher parameter shall be sent in an INVITE, and any refresher
received from the remote proxy or UAC shall be echoed back.
UAC - User Agent Client. Default.
UAS - User Agent Server.
Timeout Range is 90-7200 seconds, with a default of 1800.
IP Packet Priority - Sets the precedence bits in the TOS byte of the IP header to prioritize packet handling.
RTP TOS Range is 0x00 - 0xff. Default 0xb8
SIP TOS Range is 0x00 - 0xff. Default 0xdc