DSP ressources, voice mails port and Alarms

[KurpeusLondon]

Hi guys,

I'm being confused about the number of DSP I've got in my system. I've also some DSP alarms I believe are related to my configuration

I've got two ICP 3300 CXII controllers

The first one's:
1 76, 0 2 T1E1 Resiliency-DSP-VEC-STRATUM4 MMC
2 74, 0 0 Quad BRI(S/T)
3 -- -- --
4 95, 6 0 2 SHARC 21363 DSP

5 voicemail ports are defined. This is what I've got when I look the alarm details:

DSP Status: total: 5 unavailable: 40%

showdspstatus:
Slot Number 0 Dsp 0 State: ACTIVE
Slot Number 3 Dsp 0 State: ACTIVE
Slot Number 3 Dsp 1 State: ACTIVE


The second:
1 74, 0 0 Quad BRI(S/T)
2 -- -- --
3 -- -- --
4 95, 6 0 2 SHARC 21363 DSP

10 voicemail ports were defined.

Alarms details:
DSP Status: total: 4 unavailable: 50%

Slot Number 3 Dsp 0 State: ACTIVE
Slot Number 3 Dsp 1 State: ACTIVE


I can't understand how is calculated the number of unavailable resources and I wonder if it's a sticky alarm ( you need to clear it manually if it's triggered at some point).

I believe a 2 SHARC 21363 DSP enable you to have 4 voicemail ports. Not sure about the DSP provided with the T1/E1 card.

I've also some compression licences but I won't use them. If I change the compression licences from 8 to 0 will I have more voicemail ports available ?

Another question: I don't believe I would have more than 4 concurrent calls using DSP resources. Can I define more voicemail ports than the system can handle ? The reason I ask is I have severals customers / different line numbers that need to use different RAD.


Many thanks for your help.

 

[IrwinMFletcher]

Please post the output of DumpDspBootInfo from both machines.

 

[KurpeusLondon]

Thanks for having a look:

This is from the first controller, the one with the T1/E1 card

Dsp(0,0): mmcSlot=1 (1-based) Load Type: TELEPHONY(1,"/sysro/DspConfig/TELEPHONY.161")
Mod Type: NOCONFERENCE(1)
Dsp(1,0): mmcSlot=4 (1-based) Load Type: TELEEC(6,"/sysro/DspConfig/TeleEC.363")
Mod Type: NOCONFERENCE(1)
Dsp(1,1): mmcSlot=4 (1-based) Load Type: TELEEC(6,"/sysro/DspConfig/TeleEC.363")
Mod Type: NOVOICEMAIL(7)

This is from the second

Dsp(0,0): mmcSlot=4 (1-based) Load Type: TELEEC(6,"/sysro/DspConfig/TeleEC.363")
Mod Type: NOCONFERENCE(1)
Dsp(0,1): mmcSlot=4 (1-based) Load Type: TELEEC(6,"/sysro/DspConfig/TeleEC.363")
Mod Type: NOVOICEMAIL(7)

 

[IrwinMFletcher]

There are a couple of things with this. First, on the CX, in order to get more than 4 voicemail ports, you need to have more than 1 telephony dsp, then you can have 16 at most. With the CXII, you just need one dsp to get the full 16 (again the max).

Here's the tricky bit. What defines 'telephony'? It used to be clear as it said 'Telephony', but I think when they came out with the 'TeleEC' image (a combination of telephony and echo cancellers) that wasn't recognized as a valid telephony image. You'll also note that there are 'mods' to the images, the last one for example is modified to not allow voicemail.

I would suspect that this is been fixed, what version are you running?

 

[Mitelmatt]

What type of DSP card have you got? ran into exactly the same issue, on the CX11 it needs to be the new DSP11 card not the old dual dsp

 

[KurpeusLondon]

Both controllers are running MCD10.1 SP1

I guess the difference between config files come from a different DSP type 21363 and 21163

Knowing that it makes sense to use different filename if your DSP doesn't provide EC

 

[KurpeusLondon]

We bought these ICP few months ago. They came with , from what I can see "2 SHARC 21363 DSP" plus one DSP provided with the E1/T1 21161

 

[Mitelmatt]

don;t forget that the E1 combo card in a CX also has extra telephony resources?

So the second system has got less resource than the first

Did you add a dsp card or just whats on the main board?

Have you got compression licences on the system?

 

[KurpeusLondon]

I've got compression licences but won't use them. I wonder if I can "free" some voicemail ports by desactivating that.

I didn't add any DSP cards, I guess it's the base system

 

[IrwinMFletcher]

Ah, is that why it says, 5, you have 8 compression on the first system? If so it won't use them as it needs a minimum telephony to start.

Btw, You can only add compression to the first system, the 21363's don't support compression.

 

[KurpeusLondon]

Actually I got 8 compression licences per system.

I wont' be using them at all.

As I see it, the system counts 4 voicemail ports because of the 21363 plus 1 voicemail port from the E1/T1 card (21163 DSP)

 

[IrwinMFletcher]

No, I think there is just still something wrong in the calculations.

One of the dsps can do more than enough VM ports, the reason that they are limited is to reserve the rest of the dsp for other telephony resources.

Your second system will always alarm due to the fact that you have compression licenses and no dsps to support them.

The first system will do the same since it won't overwite the 21161 dsp with compression since telephony is a 'critical' resource, i.e. it trumps compression.

To answer your original question as well, no you can't increase the vm ports without the necessary dsps, without running into this problem. The system will not allow you to trade off telephony resources for voicemail. Why? Because they don't want people complaining when they bump their voicemail ports up to 30 and then find out that they can't get dial tone off an ONS circuit. The system eng guidelines spell out what hardware you require for what level of resources, and there are checks in the system (like the alarms) that enforce those configurations.

 

[Mitelmatt]

Can you answer what type of dsp module you have? The cx11 is different ot the old cx Irwin, it has 2 dsp on the mail board and can do 16 VMS port out the box.

You need a dsp 11 in order to have the compression . If you have the compression licences you will need the dsp11 in order for it to sort itself out.

The dsp 11 in the system will only do compression

If you have access to MOL go to product documentaion and download the cx11 Addedum doc and that will explain all

 

[IrwinMFletcher]

MitelMatt, yep, he has the CXII based on the loading, you're right I was reading the wrong column. It's 16 VM in the base for the CXII. I'm a bit surprised at that really, not so much the voicemail ports, but that they can also supply 32 channels of echo cancelling.

You actually don't need a DSPII card for compression, any of the dual or quad 21161 cards will do. I see what you mean by the note in the addendum, however that is referring to the case where you have a DSPII AND a dual or quad 21161 card. In that case, compression will only be loaded on the DSPII card.

 

[Mitelmatt]

Hi Irwin

Yeah here what you're saying but had this issue and raised a case, the CX111 don't like the dual or quad dsp. The addendum actually states just the dsp 11

So in order to get the set up described above you will need 1 X DSP 11 no other cards will surfice

 

[KurpeusLondon]

Hi guys,

Thanks for all these explanations and sorry for the delay.

I'm still confused about the DSPs and their names.

According to the addendum, the CX II base support natively 16 VM ports and this is provided by the two 21363 DSPs provided on the main board. Then I also got one system with a 21161 provided by the T1/E1 card.

I can't afford to buy another DSP. I would like to clear all alarms I've got. I guess I need to remove the IP compression licences that I won't use anyway. I can't do that manually, so I guess I need to ask the TAC to detach it.

I've got some weird behavior with my MWI lamps and I read somewhere it could be because I don't have enough VM ports.

I would like to increase the number of VM ports to 16 on both system as I need to use numerous RAD.

 

[IrwinMFletcher]

You can increase the number to 16 on both systems (provided they are CX2's) without changing anything else.

To change the compression license you'll need another app record. I don't think those are the types of alarms that can be masked.

Personally, I'd be a bit peeved that I was 'sold' licenses for things that I didn't have enough resources to support....