AudioCodes Mediant 500L MSBR - Page 341

User's Manual 22. Coders and Profiles
Version 6.8 341 Mediant 500L MSBR
Parameter Description
number sent in the Q.931 Setup message to the Tel.
Thus, the called and redirect numbers are the same.
 [2] Before Manipulation = Copies the called number
before manipulation. The device first copies the original
called number to the SIP Diversion header, and then
performs IP-to-Tel destination phone number
manipulation. Thus, the called (i.e., SIP To header) and
redirect (i.e., SIP Diversion header) numbers are
different.
Note: The corresponding global parameter is
CopyDest2RedirectNumber.
Web: Media Security Behavior
CLI: media-security-behaviour
[IpProfile_MediaSecurityBehaviour]
Defines the handling of SRTP for this SIP entity.
 [-1] Not Configured = Applies the settings of the
corresponding global parameter,
MediaSecurityBehaviour.
 [0] Preferable = (Default) The device initiates encrypted
calls to this SIP entity. However, if negotiation of the
cipher suite fails, an unencrypted call is established. The
device accepts incoming calls received from the SIP
entity that don't include encryption information.
 [1] Mandatory = The device initiates encrypted calls to
this SIP entity, but if negotiation of the cipher suite fails,
the call is terminated. The device rejects incoming calls
received from the SIP entity that don't include encryption
information.
 [2] Disable = This SIP entity does not support encrypted
calls (i.e., SRTP).
 [3] Preferable - Single Media = The device sends SDP
with a single media ('m=') line only (e.g., m=audio 6000
RTP/AVP 4 0 70 96) with RTP/AVP and crypto keys. The
SIP entity can respond with SRTP or RTP parameters:

If the SIP entity does not support SRTP, it uses RTP
and ignores the crypto lines.

If the device receives an SDP offer with a single
media (as shown above) from the SIP entity, it
responds with SRTP (RTP/SAVP) if the
EnableMediaSecurity parameter is set to 1. If SRTP
is not supported (i.e., EnableMediaSecurity is set to
0), it responds with RTP.

If two 'm=' lines are received in the SDP offer, the
device prefers the SAVP (secure audio video profile),
regardless of the order in the SDP.
Notes:
 This parameter is applicable only when the
EnableMediaSecurity parameter is set to 1.
 The corresponding global parameter is
MediaSecurityBehaviour.
Web: Number of Calls Limit
CLI: call-limit
[IpProfile_CallLimit]
Defines the maximum number of concurrent calls (incoming
and outgoing). If the number of concurrent calls reaches this
limit, the device rejects any new incoming and outgoing calls
belonging to this IP Profile.
This parameter can also be set to the following:
 [-1] = (Default) No limitation on calls.