LCD 8×20 LDS8H1011B

It took me a lot of work to find at least pin outs for LCD 8×20. Seems tipical, but it doesn’t. Maybe info below will be useful. Display description contains ALPS NEA02028AA and LDS8H1011B and chip M50530. The rest is in Mitsubishi M50530-XXXFP data sheet – LCD controller-driver. Here.     PIN PIN 1 DB0 …

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Cisco IP Phone services and image

From time to time details are needed to create some images for IP Phone services. Short help here.

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Meridian 1 and VWIC2-2BRI integration

A few years ago I had tested integration between Nortel Meridian 1 PBX and Cisco CallManager 3.1 using router with voice card. I found my notes from that implementation, as I remember discovery of that solution was pretty difficult. 1. Config on Cisco GW using H.323 was pretty standard so I skip that detail. 2. …

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Contact Queue not routed to an agent

I found something new in CRS CSQ configuration, something interesting a unknown for me. The problem was regarding 2 CSQs – one was with criteria Most Skilled and second with Most Skilled by Weight. Additionally agent had another queues configured and those had been receiving calls with no problem. Those was no routed. Long long discoveries showed that if …

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LCD 8×20 LDS8H1011BCisco IP Phone services and imageMeridian 1 and VWIC2-2BRI integrationContact Queue not routed to an agent

Feb 23

LCD 8×20 LDS8H1011B

Categories:

electronics

It took me a lot of work to find at least pin outs for LCD 8×20. Seems tipical, but it doesn’t. Maybe info below will be useful.

Display description contains ALPS NEA02028AA and LDS8H1011B and chip M50530. The rest is in Mitsubishi M50530-XXXFP data sheet – LCD controller-driver. Here.

 

 

PIN PIN
1 DB0 P1.0 11 I/OC2 P3.4
2 DB1 P1.1 12 I/OC1 P3.5
3 DB2 P1.2 13 Vs 3-14V
4 DB3 P1.3 14 Vdd 5V
5 DB4 P1.4 15 Vss GND
6 DB5 P1.5 16 key III, VI
7 DB6 P1.6 17 key II, V
8 DB7 P1.7 18 key I, IV
9 EX P3.2 19 key IV, V, VI
10 R/W P3.3 20 key I, II, III

 

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Feb 16

Cisco IP Phone services and image

Categories:

CallManager, ip telephony

From time to time details are needed to create some images for IP Phone services.
Short help here.

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Feb 10

Meridian 1 and VWIC2-2BRI integration

Categories:

CallManager, cvoice, ip telephony, PBX, voip

A few years ago I had tested integration between Nortel Meridian 1 PBX and Cisco CallManager 3.1 using router with voice card.

I found my notes from that implementation, as I remember discovery of that solution was pretty difficult.

1. Config on Cisco GW using H.323 was pretty standard so I skip that detail.

2. Meridian 1 PBX requires specific card – in that case it was 8 ISDN ports card – SILC NT6D70.

3. Another step it’s to configure Meridian 1 under LD27 as below:


REQ NEW
TYPE DSL
DSL 8 0 1 0
APPL BRIL
DES BRI
CUST 0
MODE NTFS
B1CT VCE DTA
B2CT VCE DTA
LDN NO
XLST 2
MTEI 8
MCAL 16
MTSP 8
LAPD 2
PRID 2
PDCA 3
FDN
EFD
HUNT
EHT
TGAR 0
NCOS 7
SCPW
SGRP 0
CAC_MFC 3
CLS UNR ICDD CDMD MRD UDI ABDD PGND

REQ NEW
TYPE TSP
DSL 8 0 1 0
USID 0
SUPL_SVC
DN 3992
CT VCE DTA
MCAL 4
CLIP YES
PRES YES
COLP NO
TRANS NO
FEAT HTD FND SFD CFTD MWD FBD HBTD CFXD DN03 DNDY
SSRV_ETSI
DN
DFDN 3992

4. At this moment ip phones should be reachable under e.x. 3992 extension. If needed change IDC as I remember under LD49.

5. Another step is to bind SILC ports to one trunk and attach to trunk (LD15, LD16) with a range of extensions 10 or 100.

Nortel Merdian 1 is almost an antique, but from time perspective comparing to other vendors PBX this one is outstanding, so it still may be helpful to use a solution as above.

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Dec 07

Contact Queue not routed to an agent

Categories:

CCIE, CRS

I found something new in CRS CSQ configuration, something interesting a unknown for me.

The problem was regarding 2 CSQs – one was with criteria Most Skilled and second with Most Skilled by Weight. Additionally agent had another queues configured and those had been receiving calls with no problem. Those was no routed. Long long discoveries showed that if there are CSQs with more than one skills and those skills are assigned to others CSQs, an agent will not recieve a call until all that queues will be assigned with minimum competence to agent.

So if there is a CSQ with skills a,b,c,d from queues A,B,C,D and agent has got assigned skills a,b,e,f then an agent will not receive any call from CSQs A,B until it will be assigned with CSQs A,B,C,D. In that case if faced such issue then add agent to proper CSQ or reconfigure CSQ by removing skills c,d. Of course assure, it will not touch call routing for others agents.

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Oct 20

0x829A – Non-selected user clearing

Categories:

cvoice, voip

One another solution probably fast, but remember it doesn’t have to be the perfect for any case.
If you see in logs “0x829A – Non-selected user clearing”, at the beginning check if all related dial-peers are OK. Check presence of “direct-inward-dial”, if destination-pattern doesn’t block.

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Oct 17

DSP module test

Categories:

cvoice, voip

Found in the net:
test voice driver and select 0 (for DSP slot in my case), 2 (DSP) then 16 (Display DSP Keepalive Status)
Result as below
DSP Keepalive Status Display:
=============================
DSP 1 is Alive, State: 4, Keepalive Sent: 130, Skip 131
DSP 2 is Alive, State: 4, Keepalive Sent: 97325, Skip 97329
DSP 3 is Alive, State: 4, Keepalive Sent: 97326, Skip 97328
DSP 4 Not Exist

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Oct 17

Another DSP issue and error 0x80AA

Categories:

cvoice, voip

I had to solve another problem with switching congestion equipement.
Again
Cause i = 0x80AA - Switching equipment congestion
However dspware version from “show voice dsp detail” was OK I tried:
test dsp device 0 all reset but it hasn’t changed my status. Resetting router aka reload and no change at all.
What I found was here:
router# Show voice dsp group all
DSP groups on slot 0:
dsp 1:
State: FAIL, firmware: 23.8.0
Max signal/voice channel: 16/16
Max credits: 240
num_of_sig_chnls_allocated: 8
Transcoding channels allocated: 0
Group: FLEX_GROUP_VOICE, complexity: FLEX
Shared credits: 240, reserved credits: 0
Signaling channels allocated: 8
Voice channels allocated: 0
Credits used: 0

dsp 2:
State: UP, firmware: 23.8.0
Max signal/voice channel: 16/16
Max credits: 240
num_of_sig_chnls_allocated: 0
Transcoding channels allocated: 0
Group: FLEX_GROUP_VOICE, complexity: FLEX
Shared credits: 240, reserved credits: 0
Signaling channels allocated: 0
Voice channels allocated: 0
Credits used: 0

Another time another DSP module to replace.

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Oct 12

How to limit E1 channels

Categories:

CallManager, cvoice, ip telephony, voip

If there is an idea that you will need guarantize a few channels for incoming calls there is one good method.
1. In global configuration mode create a label
trunk group OUTGOING_CALLS
2. For controller assign trunk group and limit channels. Remember, it depends from provider’s setup of channels selection. Bottom-to-Top or Top-to-Bottom.
controller E1 0/2/0
pri-group timeslots 1-31
trunk-group OUTGOING_CALLS timeslots 1-9
3. Assign trunk group to outgoing dial-peer
dial-peer voice 100 pots
trunkgroup OUTGOING_CALLS

If there is a need to limit an incoming calls, just contact telco provider.

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Oct 07

DSP issue and switching equipment congestion

Categories:

cvoice, voip

A few weeks ago I faced an issue with DSP module. I was looking for a solution but there was a poor description in the network. Even Cisco error decoder hadn’t help at all. I hope this will help someone.
The problem waswith calls establishing. Phones were calling but no voice channel was created. In logs just short info.
Cause i = 0x80AA - Switching equipment congestion
I checked translation-rules, dial-peers etc. but when no changes have been done it wouldn’t be so simple. Some more discoveries and diagnostic as below:
Sh voice dsp detailed
*
*
Warning! DSPs1, in slot 0 are using non-default firmware from flash:
This is not recommended, the default version is 23.8.0

----------------------------FLEX VOICE CARD 0 ------------------------------
*DSP VOICE CHANNELS*

CURR STATE : (busy)inuse (b-out)busy out (bpend)busyout pending
LEGEND : (bad)bad (shut)shutdown (dpend)download pending

DSP DSP DSPWARE CURR BOOT PAK TX/RX
TYPE NUM CH CODEC VERSION STATE STATE RST AI VOICEPORT TS ABRT PACK COUNT
===== === == ========= ========== ===== ======= === == ========= == ==== ============
C5510 001 01 None 0.0.0 bad idle 1 0 0 0/0
C5510 001 02 None 0.0.0 bad idle 1 0 0 0/0
C5510 001 03 None 0.0.0 bad idle 1 0 0 0/0
C5510 001 04 None 0.0.0 bad idle 1 0 0 0/0
C5510 001 05 None 0.0.0 bad idle 1 0 0 0/0
C5510 001 06 None 0.0.0 bad idle 1 0 0 0/0
C5510 001 07 None 0.0.0 bad idle 1 0 0 0/0
C5510 001 08 None 0.0.0 bad idle 1 0 0 0/0
C5510 001 09 None 0.0.0 bad idle 1 0 0 0/0
C5510 001 10 None 0.0.0 bad idle 1 0 0 0/0
C5510 001 11 None 0.0.0 bad idle 1 0 0 0/0
C5510 001 12 None 0.0.0 bad idle 1 0 0 0/0
C5510 001 13 None 0.0.0 bad idle 1 0 0 0/0
C5510 001 14 None 0.0.0 bad idle 1 0 0 0/0
C5510 001 15 None 0.0.0 bad idle 1 0 0 0/0
C5510 001 16 None 0.0.0 bad idle 1 0 0 0/0
C5510 002 01 None 23.8.0 idle idle 1 0 0 0/0
C5510 002 02 None 23.8.0 idle idle 1 0 0 0/0
C5510 002 03 None 23.8.0 idle idle 1 0 0 0/0
C5510 002 04 None 23.8.0 idle idle 1 0 0 0/0
C5510 002 05 None 23.8.0 idle idle 1 0 0 0/0
C5510 002 06 None 23.8.0 idle idle 1 0 0 0/0
C5510 002 07 None 23.8.0 idle idle 1 0 0 0/0
C5510 002 08 None 23.8.0 idle idle 1 0 0 0/0
Difference between DSP NUM 1 and 2 shows that number 1 was broken. Fast change corrected and issue and all came back to normal work.

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Oct 04

Reverse telnet – AUX to Console

Categories:

networking

I needed some access from router to switch without running adn connecting directly to switch. An Idea was to check if it is possible to connect through AUX port on Cisco router to HP proCurve console port.
Well, It is possible and simple, so:
1. Connect Cisco console cable between AUX on router and Console port on switch
2. Configure router AUX port
line aux 0
modem InOut
transport input all
speed 9600 (default or more – the same as for switch)
3. If there is no loopback create one
4. Check communication lines
RTR#sh line
Tty Line Typ Tx/Rx A Modem Roty AccO AccI Uses Noise Overruns Int
0 0 CTY - - - - - 0 0 0/0 -
1 1 AUX 9600/9600 - inout - - - 1 0 29/71480 -
194 194 VTY - - - - - 6 0 0/0 -
* 195 195 VTY - - - - - 3 0 0/0 -
196 196 VTY - - - - - 0 0 0/0 -
197 197 VTY - - - - - 0 0 0/0 -
* marks the line you are connected through. My example is from router 1841
5. Whatever you found lines have different numbering on different router’s series, so just telnet to loopback address and port 2000+ AUX line. In my case 2001.
6. When you has finished, while use keys combination CTRL+SHIFT+6, then press X.
This will disconnect you from the AUX port (and switch in my case)
7. To reconnect to AUX, first it is needed to clear line:
clear line x (in my case x=1)

It is nice I will have access to legacy PBX via IP. Dial-up is history.

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