SBC 5110 DSP Densities

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.711	G.711SS	G.722	G.722.1	G.723.1	G.726	G.729ab	T.38v0	T.38v3	AMR-nb	AMR-wb	iLBC	EVRC	EVRCb	Opus	SILK-NB	SILK-WB	EVS
G.711	10000	7840	5520	4800	5520	5520	5840	4600	1240	4960	2520	3480	3040	2200	1400	2800	2000	520
G.711SS	7840	7840	5520	4800	5520	5520	5840	N/A	N/A	4960	2520	3480	3040	2200	1400	2800	2000	520
G.722	5520	5520	2760	2560	2760	2760	2800	N/A	N/A	2600	1720	2120	1960	1560	1080	1840	1440	440
G.722.1	4800	4800	2560	2400	2560	2560	2600	N/A	N/A	2400	1640	2000	1840	1480	1080	1760	1400	440
G.723.1	5520	5520	2760	2560	2760	2760	2800	N/A	N/A	2600	1720	2120	1960	1560	1080	1840	1440	440
G.726	5520	5520	2760	2560	2760	2760	2800	N/A	N/A	2600	1720	2120	1960	1560	1080	1840	1440	440
G.729ab	5840	5840	2800	2600	2800	2800	2920	N/A	N/A	2680	1760	2160	1960	1560	1120	1880	1480	440
T.38v0	4600	N/A	N/A	N/A	N/A	N/A	N/A	2280	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A
T.38v3	1240	N/A	N/A	N/A	N/A	N/A	N/A	N/A	600	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A
AMR-nb	4960	4960	2600	2400	2600	2600	2680	N/A	N/A	2480	1640	2040	1880	1520	1080	1760	1400	440
AMR-wb	2520	2520	1720	1640	1720	1720	1760	N/A	N/A	1640	1240	1440	1360	1160	880	1320	1080	400
iLBC	3480	3480	2120	2000	2120	2120	2160	N/A	N/A	2040	1440	1720	1600	1320	960	1520	1240	440
EVRC	3040	3040	1960	1840	1960	1960	1960	N/A	N/A	1880	1360	1600	1520	1240	920	1440	1200	440
EVRCb	2200	2200	1560	1480	1560	1560	1560	N/A	N/A	1520	1160	1320	1240	1080	840	1200	1040	400
Opus	1400	1400	1080	1080	1080	1080	1120	N/A	N/A	1080	880	960	920	840	680	920	800	360
SILK-NB	2800	2800	1840	1760	1840	1840	1880	N/A	N/A	1760	1320	1520	1440	1200	920	1400	1160	400
SILK-WB	2000	2000	1440	1400	1440	1440	1480	N/A	N/A	1400	1080	1240	1200	1040	800	1160	1000	400
EVS	520	520	440	440	440	440	440	N/A	N/A	440	400	440	440	400	360	400	400	240

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.711	G.711SS	G.722	G.722.1	G.723.1	G.726	G.729ab	T.38v0	T.38v3	AMR-nb	AMR-wb	iLBC	EVRC	EVRCb	Opus	SILK-NB	SILK-WB	EVS
G.711	2000	1568	1104	960	1104	1104	1168	920	248	992	504	696	608	440	280	560	400	104
G.711SS	1568	1568	1104	960	1104	1104	1168	N/A	N/A	992	504	696	608	440	280	560	400	104
G.722	1104	1104	552	512	552	552	560	N/A	N/A	520	344	424	392	312	216	368	288	88
G.722.1	960	960	512	480	512	512	520	N/A	N/A	480	328	400	368	296	216	352	280	88
G.723.1	1104	1104	552	512	552	552	560	N/A	N/A	520	344	424	392	312	216	368	288	88
G.726	1104	1104	552	512	552	552	560	N/A	N/A	520	344	424	392	312	216	368	288	88
G.729ab	1168	1168	560	520	560	560	584	N/A	N/A	536	352	432	392	312	224	376	296	88
T.38v0	920	N/A	N/A	N/A	N/A	N/A	N/A	456	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A
T.38v3	248	N/A	N/A	N/A	N/A	N/A	N/A	N/A	120	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A
AMR-nb	992	992	520	480	520	520	536	N/A	N/A	496	328	408	376	304	216	352	280	88
AMR-wb	504	504	344	328	344	344	352	N/A	N/A	328	248	288	272	232	176	264	216	80
iLBC	696	696	424	400	424	424	432	N/A	N/A	408	288	344	320	264	192	304	248	88
EVRC	608	608	392	368	392	392	392	N/A	N/A	376	272	320	304	248	184	288	240	88
EVRCb	440	440	312	296	312	312	312	N/A	N/A	304	232	264	248	216	168	240	208	80
Opus	280	280	216	216	216	216	224	N/A	N/A	216	176	192	184	168	136	184	160	72
SILK-NB	560	560	368	352	368	368	376	N/A	N/A	352	264	304	288	240	184	280	232	80
SILK-WB	400	400	288	280	288	288	296	N/A	N/A	280	216	248	240	208	160	232	200	80
EVS	104	104	88	88	88	88	88	N/A	N/A	88	80	88	88	80	72	80	80	48

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SBC 5110 With One DSP25

SBC 5110 With One DSP20