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  7. Remote hybrid echo not being canceled by hardware ec
× Questions about D-110P 1 Span E1/T1/J1 Interface Card

Remote hybrid echo not being canceled by hardware ec

13 years 2 months ago #6544 by Jessie.liao
HI,
The MG2 software echo canceller must be disabled.
Please show your dmesg information.
What's the output of "cat /proc/interrupts"?
If possible,could you send your SSH to my email:[email protected]? I'll check that for you.
Please add my MSN/G-talk:[email protected] to contact with me.
13 years 2 months ago #6545 by james.zhu
hello:
you can refer the read me for debug the card:
debug (most modules)::
Sets debug mode / debug level. With most modules 'debug' can be either
disabled (0, the default value) or enabled (any other value).
+
+
wctdm and wcte1xp print several extra debugging messages if the value
of debug is more than 1.
+
+
Some modules have "debugging flags" bits - the value of debug is a
bitmask and several messages are printed if some bits are set:
- ztdummy:
* 1: DEBUG_GENERAL - general error messages.
* 2: DEBUG_TICKS - Show that the module is alive :-)
- wctdm24xxp:
* 1: DEBUG_CARD
* 2: DEBUG_ECHOCAN
- wct4xxp:
* 1: DEBUG_MAIN
* 2: DEBUG_DTMF
* 4: DEBUG_REGS
* 8: DEBUG_TSI
* 16: DEBUG_ECHOCAN
* 32: DEBUG_RBS
* 64: DEBUG_FRAMER
- xpp: Previously (before 1.2.26 / 1.4.11) it was called "print_dbg".
See also README.Astribank:
* 1: GENERAL - General debug comments.
* 2: PCM - PCM-related messages. Tend to flood logs.
* 4: LEDS - Anything related to the LEDs status control. The driver
produces a lot of messages when the option is enabled.
* 8: SYNC - Synchronization related messages.
* 16: SIGNAL - Zaptel signalling related messages.
* 32: PROC - Messages related to the procfs interface.
* 64: REGS - Reading and writing to chip registers. Tends to flood
logs.
* 128: DEVICES - Device instantiation, destruction and such.
* 256 - COMMANDS - Protocol commands. Tends to flood logs.
==================================================
when loading the driver by: modprobe wct4xxp debug=XXXX
13 years 2 months ago #6546 by lordvadr
Jessie,

I have added you to my msn contact list. I'll keep an eye out for you. I'm going to guess you're in UTC+8. I'm in UTC-6 so it might be tough to get a hold of each other. Unfortunately I can't give you the ssh login just yet, but I have a request into mgmt.

I will look into enabling debug on the card this evening. Here are the answers to your questions:

MG2 is disabled.
Here is the dmesg from the most recent module load. I can see the earlier load up in the file that references the MG2 ec, but that has been disabled...
Stopped D115P/D115E, Turned off DMA
D115P/D115E: Disabling interrupts since there are no active spans
Found D115P/D115E at base address fc4ffc00, remapped to ffffc20000014c00
D115P/D115E version c01a0000, burst OFF
FALC version: 00000005, Board ID: 00
Reg 0: 0x663b0400
Reg 1: 0x663b0000
Reg 2: 0xfc4ffc08
Reg 3: 0x00000000
Reg 4: 0x00000000
Reg 5: 0xfc4ffc14
Reg 6: 0xc01a0000
Reg 7: 0x00001000
Reg 8: 0x00000000
Reg 9: 0x00000080
Reg 10: 0xfc4ffc28
Found a Card: OpenVox D115P/D115E
D115P/D115E: Launching card: 0
D115P/D115E: Setting up global serial parameters
Stopped D115P/D115E, Turned off DMA
Found D115P/D115E at base address fc4ffc00, remapped to ffffc20000014c00
D115P/D115E version c01a0000, burst OFF
FALC version: 00000005, Board ID: 00
Reg 0: 0x677c4400
Reg 1: 0x677c4000
Reg 2: 0xfc4ffc08
Reg 3: 0x00000000
Reg 4: 0x00000000
Reg 5: 0xfc4ffc14
Reg 6: 0xc01a0000
Reg 7: 0x00001000
Reg 8: 0x00000000
Reg 9: 0x00000080
Reg 10: 0xfc4ffc28
Found a Card: OpenVox D115P/D115E
D115P/D115E: Launching card: 0
D115P/D115E: Setting up global serial parameters
About to enter spanconfig!
Done with spanconfig!
About to enter startup!
Not prepped yet!
D115P/D115E: Span 1 configured for ESF/B8ZS
Not prepped yet!
Not prepped yet!
Not prepped yet!
Opvxd115: Setting yellow alarm on span 1
SPAN 1: Primary Sync Source
timing source auto card 0!
VPM400: Not Present
timing source auto card 0!

VPM450: echo cancellation for 32 channels
Opvxd115: Clearing yellow alarm on span 1
VPM450: hardware DTMF disabled.
VPM450: Present and operational servicing 1 span(s)
Completed startup!
device eth1 entered promiscuous mode
device eth1 left promiscuous mode
Opvxd115: Setting yellow alarm on span 1
timing source auto card 0!
timing source auto card 0!
timing source auto card 0!
timing source auto card 0!
timing source auto card 0!
timing source auto card 0!
Opvxd115: Clearing yellow alarm on span 1

/proc/interrupts
CPU0 CPU1 CPU2 CPU3
0: 3907271269 0 0 0 IO-APIC-edge timer
1: 3 0 0 0 IO-APIC-edge i8042
2: 0 0 0 0 XT-PIC cascade
3: 13 0 0 0 IO-APIC-edge serial
4: 375 163 0 0 IO-APIC-edge serial
8: 0 0 0 0 IO-APIC-edge rtc
12: 4 0 0 0 IO-APIC-edge i8042
14: 1664624 71751301 0 0 IO-APIC-edge ide0
98: 1105162 0 193945359 0 PCI-MSI eth1
129: 172898 647860 2649217236 272381848 IO-APIC-level opvxd115
161: 0 0 0 0 IO-APIC-level uhci_hcd:usb3
169: 23 0 0 0 IO-APIC-level ehci_hcd:usb1, uhci_hcd:usb2, uhci_hcd:usb4
201: 289697 12655657 8725 1205 IO-APIC-level megasas
NMI: 138300 43503 175397 43165
LOC: 3723234469 3743187669 3723240859 3743185157
ERR: 0
MIS: 0

Additionally, here is /proc/dahdi/1 during a call:
Span 1: D115P/D115E/0/1 "D115P/D115E (PCI/PCI-E) Card 0 Span 1" (MASTER) B8ZS/ESF ClockSource

1 D115/0/1/1 Clear (In use) (EC: VPM450M)
2 D115/0/1/2 Clear (In use)
3 D115/0/1/3 Clear (In use)
4 D115/0/1/4 Clear (In use)
5 D115/0/1/5 Clear (In use)
6 D115/0/1/6 Clear (In use)
7 D115/0/1/7 Clear (In use)
8 D115/0/1/8 Clear (In use)
9 D115/0/1/9 Clear (In use)
10 D115/0/1/10 Clear (In use)
11 D115/0/1/11 Clear (In use)
12 D115/0/1/12 Clear (In use)
13 D115/0/1/13 Clear (In use)
14 D115/0/1/14 Clear (In use)
15 D115/0/1/15 Clear (In use)
16 D115/0/1/16 Clear (In use)
17 D115/0/1/17 Clear (In use)
18 D115/0/1/18 Clear (In use)
19 D115/0/1/19 Clear (In use)
20 D115/0/1/20 Clear (In use)
21 D115/0/1/21 Clear (In use)
22 D115/0/1/22 Clear (In use)
23 D115/0/1/23 Clear (In use)
24 D115/0/1/24 HDLCFCS (In use)
13 years 2 months ago #6547 by lordvadr
I have more info on this. The echo canceler works, but only on channel 1. I verified this by configuring my other asterisk system to answer a call and immediately run the Echo command. On channel 1, there is no echo (actually there's a cancellation artifact but I'm assuming only because the "echo" is so loud). On every other channel, the echo is there in full amplitude, even though in /proc/dahdi/1, it indicates the operation of the echo canceller.
/etc/dahdi/system.conf:

# Span 1: D115P/D115E/0/1 "D115P/D115E (PCI/PCI-E) Card 0 Span 1" (MASTER)
span=1,1,0,esf,b8zs
bchan=1-23
dchan=24
loadzone = us
defaultzone = us


/etc/asterisk/dahdi-channels.conf:

group=0
txgain=0
rxgain=0
context=from-pstn
switchtype = national
signalling = pri_cpe
channel => 1-23


Anything else you need me to post. Tonight, I'm going to confirm that this behavior happens on all channels besides 1, and that I get echo on channel 1 with echo-can disabled. I will also turn on the echocan debugging and see what happens. If you have any ideas on this though, please let me know.

-CJO-
13 years 2 months ago #6548 by Jessie.liao
HI CJO,
The EC works only when calling.
If your calling via channel 1,the EC status of channel 1 detects ON. And the other no calling channels will be OFF unless you make calls through them.
13 years 2 months ago #6549 by lordvadr
Jessie,

I understand that the EC is only working on active calls. What I'm trying to say is that if I place a call, or receive a call, and it happens to be on channel 1, the EC works. If it ends up on any other channel (admittedly I've only tested 2-6), including if channel 1 is currently on a call, the EC doesn't work on that channel. During the day, there are 2-8 active channels at any given time. Again, if I happen to get channel 1, everything works. Otherwise, it doesn't. What concerns me is that /proc/dadh/1 shows the echo canceller for every call, even though it doesn't work (unless the call I'm testing with happens to be on channel 1).

-CJO-
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