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Back to Table of Contents

Back to DSP Channel Densities for SBC 5000 and 7000 Series

Back to SBC 5x00 DSP Densities

 

The matrix below depicts the maximum number of sessions between two codec types for an SBC 5100 equipped with the SPS100 module. The SBC 5100 can accommodate up to two SPS100DB daughter board modules for increased DSP densities. However, the maximum number of sessions on an SBC 5100 is 10,000 even though a three-DSP configuration supports over 10,000 sessions for some codecs.

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If one or both SPS100DB modules are installed, multiply the values in the table below by a factor of two or three, as appropriate, to obtain DSP density values. DSP density values are approximate and intended for use as a general guide when estimating transcoding capabilities.

Values associated with the same codec (i.e. like-codec to like-codec) refer to re-packetization.

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The maximum number of sessions on SBC 5100 is 10,000 even though a three-DSP configuration supports over 10,000 for some codecs.

 

SBC 5100 with one SPS100

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Cells highlighted in the matrix below may be limited by bandwidth depending on packet size for the following SPS configurations/color combinations:

  • SPS100: yellow
  • SPS100 + one or two SPS100DB: yellow, green
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Codec Type
G.711 G.711SS G.722 G.722.1 G.723.1 G.726 G.729ab T.38v0
T.38v3AMR-nb
AMR-wb iLBC EVRC EVRCb 
G.711 10000 8544 5760 4992 5760 5760 5184 4800 13444224 2304 3648 3168 2304 
G.711SS 8544 8544 5760 4992 5760 5760 5184 N/A N/A4224 2304 3648 3168 2304 
G.722 5760 5760 2880 2592 2880 2880 2688 N/A N/A2400 1632 2208 2016 1632 
G.722.1 4992 4992 2592 2496 2592 2592 2496 N/A N/A2208 1536 2016 1920 1536 
G.723.1 5760 5760 2880 2592 2880 2880 2688 N/A N/A2400 1632 2208 2016 1632 
G.726 5760 5760 2880 2592 2880 2880 2688 N/A N/A2400 1632 2208 2016 1632 
G.729ab 5184 5184 2688 2496 2688 2688 2592 N/A N/A2304 1536 2112 1920 1536 
T.38v0
4800 N/A N/A N/A N/A N/A N/A 2400 N/AN/A N/A N/A N/A N/A 
T.38v31344N/A N/A N/A N/A N/A N/A N/A672N/AN/AN/AN/AN/A
AMR-nb
4224 4224 2400 2208 2400 2400 2304 N/A N/A2112 1440 1920 1728 1440 
AMR-wb 2304 2304 1632 1536 1632 1632 1536 N/A N/A1440 1152 1344 1248 1152 
iLBC 3648 3648 2208 2016 2208 2208 2112 N/A N/A1920 1344 1824 1632 1344 
EVRC 3168 3168 2016 1920 2016 2016 1920 N/A N/A1728 1248 1632 1536 1248 
EVRCb 2304 2304 1632 1536 1632 1632 1536 N/A N/A1440 1152 1344 1248 1152 

 

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