In this section:

 

This section depicts the maximum number of sessions between two codec types for an SBC 5110 using either DSP20 or DSP25 modules. Only one DSP20 can be used in an SBC 5x10, and it cannot be mixed with DSP25 modules within the same chassis, and between Active and Standby servers.

 

SBC 5110 With One DSP25

The following matrix lists the maximum number of sessions between two codec types for an SBC 5110 equipped with one DSP25 module. The SBC 5110 can be configured with up to four DSP25 modules; however, the maximum number of sessions on SBC 5110 is 10,000.

DSP Density Limitations

DSP density values are approximate and intended for use as a general guide when estimating transcoding capabilities.

  • The density highlighted in green may be limited by bandwidth depending upon packet size when SBC is configured with one DSP25 module.
  • The densities highlighted in yellow may be limited by bandwidth depending upon packet size when SBC is configured with two or more DSP25 modules.

Info

If more than one module is installed, multiply the values in the table below by a factor of two, three or four, as appropriate, to obtain approximate 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.

Note

Enabling V.8 signal analysis will further reduce densities. See V.8 Signal Analysis Support for details.

 

SBC 5110 With One DSP25

Codec Type G.711G.711SSG.722G.722.1G.723.1G.726G.729abT.38v0T.38v3AMR-nbAMR-wbiLBCEVRCEVRCbOpusSILK-NBSILK-WB
G.711100007840552048005520552058404600124049602520348030402200140028002000
G.711SS7840784055204800552055205840N/AN/A49602520348030402200140028002000
G.7225520552027602560276027602800N/AN/A26001720212019601560108018401440
G.722.14800480025602400256025602600N/AN/A24001640200018401480108017601400
G.723.15520552027602560276027602800N/AN/A26001720212019601560108018401440
G.7265520552027602560276027602800N/AN/A26001720212019601560108018401440
G.729ab5840584028002600280028002920N/AN/A26801760216019601560112018801480
T.38v04600N/AN/AN/AN/AN/AN/A2280N/AN/AN/AN/AN/AN/AN/AN/AN/A
T.38v31240N/AN/AN/AN/AN/AN/AN/A600N/AN/AN/AN/AN/AN/AN/AN/A
AMR-nb4960496026002400260026002680N/AN/A24801640204018801520108017601400
AMR-wb2520252017201640172017201760N/AN/A1640124014401360116088013201080
iLBC3480348021202000212021202160N/AN/A2040144017201600132096015201240
EVRC3040304019601840196019601960N/AN/A1880136016001520124092014401200
EVRCb2200220015601480156015601560N/AN/A1520116013201240108084012001040
Opus1400140010801080108010801120N/AN/A1080880960920840680920800
SILK-NB2800280018401760184018401880N/AN/A1760132015201440120092014001160
SILK-WB2000200014401400144014401480N/AN/A1400108012401200104080011601000

 

SBC 5110 With One DSP20

The following matrix lists the maximum number of sessions between two codec types for an SBC 5110 equipped with one DSP20 module.

Info

DSP density values are approximate and intended for use as a general guide when estimating transcoding capabilities.

Note

Enabling V.8 signal analysis will further reduce densities. See V.8 Signal Analysis Support for details.

SBC 5110 With One DSP20

Codec Type G.711G.711SSG.722G.722.1G.723.1G.726G.729abT.38v0T.38v3AMR-nbAMR-wbiLBCEVRCEVRCbOpusSILK-NBSILK-WB
G.711200015681104960110411041168920248992504696608440280560  400
G.711SS156815681104960110411041168N/AN/A992504696608440280 560 400
G.72211041104552512552552560N/AN/A520344424392312216 368 288
G.722.1960960512480512512520N/AN/A480328400368296216 352 280
G.723.111041104552512552552560N/AN/A520344424392312216 368 288
G.72611041104552512552552560N/AN/A520344424392312216 368 288
G.729ab11681168560520560560584N/AN/A536352432392312224 376 296
T.38v0920N/AN/AN/AN/AN/AN/A456N/AN/AN/AN/AN/AN/AN/A N/A N/A
T.38v3248N/AN/AN/AN/AN/AN/AN/A120N/AN/AN/AN/AN/AN/A N/A N/A
AMR-nb992992520480520520536N/AN/A496328408376304216 352 280
AMR-wb504504344328344344352N/AN/A328248288272232176 264 216
iLBC696696424400424424432N/AN/A408288344320264192 304 248
EVRC608608392368392392392N/AN/A376272320304248184 288 240
EVRCb440440312296312312312N/AN/A304232264248216168 240 208
Opus280280216216216216224N/AN/A216176192184168136 184 160
SILK-NB 560 560 368 352 368 368 376 N/A N/A 352 264 304 288 240 184 280 232
SILK-WB 400 400 288 280 288 288 296 N/A N/A 280 216 248 240 208 160 232 200

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