Huawei U-SYS MRS6100 Technical Manual page 37

Technical Manual
U-SYS MRS6100 Media Resource Server
It refers to the bearer attribute. At present, only one attribute, namely "encoding" (the
code is "e"), is defined. Its values can be set to "A" which represents A-law and "µ"
which represents µ-law. For example, a BearerInformation code is B: e:mu.
Call-ID (C)
Call-ID is a globally unique parameter that identifies the call (or session) to which this
connection belongs. Connections that belong to the same call share the same Call-ID.
The Call-ID can be used to identify calls for reporting and accounting purposes.
Call-ID identifies calls, which is a hexadecimal string of 32 characters at the
maximum.
ConnectionId (I)
The ConnectionId parameter is a hexadecimal string of 32 characters at the
maximum.
NotifiedEntity (N)
NotifiedEntity specifies where the notifications will be sent. If this parameter is absent,
the notifications will be sent to the originator of the NotificationRequest.
RequestIdentifier (X)
RequestIdentifier is used to correlate this request with the notifications that it triggers.
RequestIdentifier is a hexadecimal string of 32 characters at the maximum.
LocalConnectionOptions (L)
The local connection options describe the optional parameters that the call agent
recommends to the gateway. The parameters include: the packing period in
milliseconds (encoded as the keyword "p"), the preferred type of compression
algorithm (encoded as the keyword "a"), the bandwidth in kilobits per second
(encoded as the keyword "b"), the echo cancellation parameter (encoded as the
keyword "e"), the gain control parameter (encoded as the keyword "gc"), the silence
suppression parameter (encoded as the keyword "s"), the type of service parameter
(encoded as the keyword "t"), the resource reservation parameter (encoded as the
keyword "r"), the encryption key (encoded as the keyword "k"), and the type of
network (encoded as the keyword "nt"). All these parameters are optional. In the case
of multiple parameter values, commas are used for separation, for example:
L: p:10, a:PCMU
L: p:10, a:G726-32
L: p:10-20, b:64
L: b:32-64, e:off
Connection Mode (M)
Table 5-6 gives connection modes and corresponding meanings.
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