Version 7.2 1187 Mediant 1000B Gateway & E-SBC
User's Manual 63. Channel Capacity
63 Channel Capacity
The following below lists the maximum capacity figures for SIP signaling, media sessions,
and registered users.
Table 63-1: Maximum Signaling, Media Sessions and Registered Users
Product
Signaling
Sessions
Media Sessions
Registered Users
RTP-
RTP
SRTP-RTP or
SRTP-TDM
Codec
Transcoding
Mediant 1000B
Gateway & E-SBC
150 150 120 96 600
Note:
• Installation and use of voice coders is subject to obtaining the appropriate license
and royalty payments.
• The figures listed in the table are accurate at the time of publication of this
document. However, these figures may change due to a later software update. For
the latest figures, please contact your AudioCodes sales representative.
• Registered Users is the maximum number of users that can be registered with the
device. This applies to the supported application (SBC or CRP).
• Regarding signaling, media, and transcoding session resources:
√ A signaling session is a SIP dialog session between two SIP entities, traversing
the SBC and using one signaling session resource.
√ A media session is an audio (RTP or SRTP), fax (T.38), or video session
between two SIP entities, traversing the SBC and using one media session
resource.
√ A gateway session (i.e. TDM-RTP or TDM-SRTP) is also considered as a
media session for the calculation of media sessions. In other words, the
maximum Media Sessions specified in the table refer to the sum of Gateway
and SBC sessions.
√ In case of direct media (i.e., anti-tromboning / Non-Media Anchoring), where
only SIP signaling traverses the SBC and media flows directly between the SIP
entities, only a signaling session resource is used. Thus, for products with a
greater signaling session capacity than media, even when media session
resources have been exhausted, additional signaling sessions can still be
handled for direct-media calls.
√ For call sessions requiring transcoding, one transcoding session resource is
also used. For example, for a non-direct media call in which one leg uses
G.711 and the other leg G.729, one signaling resource, one media session
resource, and one transcoding session resource is used.
• To select the DSP Template that you want to use on the device, see Configuring
DSP Templates on page 206.
• The maximum number of channels on any form of analog, digital, and MPM
module assembly is 192. When the device handles both SBC and Gateway call
sessions, the maximum number of total sessions is 150. When the device handles
SRTP, the maximum capacity is reduced to 120.
• For additional DSP templates, contact your AudioCodes sales representative.
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