08-24-2011 03:30 PM - edited 03-16-2019 06:40 AM
Hello buddies;
i have some questions related to DSPs
1-DSP mandatory if i use analog module, like FXS or FXO? right?
2-for Digital modules like T1E1 Multiflex voice card , is DSP mandatory?
3-is this module "T1E1 Multiflex" contain a separate DSP itself?, i.e the module board have its DSP which can handle call processing and transcoding?
also the same question for these modules "E1/T1 ISDN PRI module", and "DigitalE1/T1 Voice Trunk module"
Solved! Go to Solution.
08-24-2011 04:53 PM
Ahmed,
I think you need to look at the DSP Calculator tools
http://www.cisco.com/cgi-bin/Support/DSP/dsp-calc.pl
Includes older routers like 1760 etc
http://www.cisco.com/web/applicat/dsprecal/dsp_calc.html
For new kit like 2900
HTH
Alex
08-24-2011 07:25 PM
Hi Ahmed,
As Alex mentioned, check out the DSP calculator and spend some time with it (+5 Alex). It will give you all the DSP's required based on your requirements (such as FXS/FXO/T1's, etc)
To answer your questions, yes, you need DSP's for FXS/FXO's, yes you would need DSP's for T1/E1 PRI's, and no the T1/E1's do not contain DSP's themselves. You need to either insert them on the motherboard or purchase a network module and place them on there.
HTH,
Chris
08-24-2011 04:53 PM
Ahmed,
I think you need to look at the DSP Calculator tools
http://www.cisco.com/cgi-bin/Support/DSP/dsp-calc.pl
Includes older routers like 1760 etc
http://www.cisco.com/web/applicat/dsprecal/dsp_calc.html
For new kit like 2900
HTH
Alex
08-24-2011 07:07 PM
Thanks Acambell, but i already know this tool
and as overall i am confused about DSP and its support to these digital modules, so i need to arrange my thinking
could you please help me and answer my question to get me out of this confussion, please
and please answer in 1 2 3 schema, again thanks for your interest
08-24-2011 07:25 PM
Hi Ahmed,
As Alex mentioned, check out the DSP calculator and spend some time with it (+5 Alex). It will give you all the DSP's required based on your requirements (such as FXS/FXO/T1's, etc)
To answer your questions, yes, you need DSP's for FXS/FXO's, yes you would need DSP's for T1/E1 PRI's, and no the T1/E1's do not contain DSP's themselves. You need to either insert them on the motherboard or purchase a network module and place them on there.
HTH,
Chris
08-25-2011 02:31 PM
i love you guies
08-25-2011 02:38 PM
i have another confusing point:
1-what is
NM-2V
and
NM-HDV
and
NM-2HDV
"what is the difference bet each one??
??
2-and how to know that router has each of them??
3-and what is the type of these NM can contain FXS moule?
4-How to get these info from the router, CLI, model??
08-25-2011 02:39 PM
i have another confusing point:
1-what is
NM-2V
and
NM-HDV
and
NM-2HDV
"what is the difference bet each one??
??
2-and how to know that router has each of them??
3-and what is the type of these NM can contain FXS moule?
4-How to get these info from the router, CLI, model??
08-25-2011 04:54 PM
Ahmed,
In ref to 2 & 4 - To find out what you have via CLI, use "show inventory" or "show diag"
NM-HDV2
NM-HDV
http://www.cisco.com/en/US/customer/tech/tk652/tk701/technologies_tech_note09186a00800b65d6.shtml
NM-2V
Difference is HDV2 is the new replacement for the older NM-HDV the NM-2v is more orientated to FXO/FXS a couple of ports (replaced by HD-HD-2v)
NM-HDV2 provide far higher density for DSP's for bulk call handeling, I use PVDM2-64's supporting 256 calls per NM-HDV2
Cheers
Dave
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