Hi There!
I recently go my hands on an Atcom AXE800P FXO/FXS card.
It proved to be almost unusable. The card is alone in one system,
the rest of the extensions are SIP phones.
I get around 70-80% dahdi_test on it.
[root@localhost ~]# dahdi_test
Opened pseudo dahdi interface, measuring accuracy…
72.491% 79.518% 91.858% 75.791% 90.175% 78.364% 72.802% 96.180%
74.847% 80.360% 86.305% 75.717% 90.522% 74.818% 80.198% 92.121%
76.577% 83.429% 85.330% 71.357% 93.710% 74.021% 76.782% 92.362%
69.550% 89.155% 84.169% 74.689% 95.464% 71.674% 78.706% 90.508%
74.418% ^C
— Results after 33 passes —
Best: 96.180 – Worst: 69.550 – Average: 81.635429, Difference: 118.364571
I use 2 double FXO ports on the card. It is working, but sound screeching makes the calls unhearable. It is like some ond fashioned dialaup modem would sound…
The system is quite modern, and I tried an OpenVox GSM card in it, that worked flawlessly.
I am trying to debug…
[root@localhost ~]# cat /proc/interrupts
CPU0 CPU1
0: 124 0 IO-APIC-edge timer
1: 3 0 IO-APIC-edge i8042
8: 1 0 IO-APIC-edge rtc0
9: 0 0 IO-APIC-fasteoi acpi
12: 4 0 IO-APIC-edge i8042
16: 93513 0 IO-APIC-fasteoi ax1600p
19: 5079 396 IO-APIC-fasteoi ata_piix, ata_piix
23: 110 0 IO-APIC-fasteoi ehci_hcd:usb1, ehci_hcd:usb2
24: 0 0 HPET_MSI-edge hpet2
25: 0 0 HPET_MSI-edge hpet3
27: 62 0 PCI-MSI-edge i915
28: 390 0 PCI-MSI-edge snd_hda_intel
29: 489 0 PCI-MSI-edge eth0
NMI: 13 3 Non-maskable interrupts
LOC: 13458 10940 Local timer interrupts
SPU: 0 0 Spurious interrupts
PMI: 13 3 Performance monitoring interrupts
IWI: 0 0 IRQ work interrupts
RES: 519 750 Rescheduling interrupts
CAL: 62 179 Function call interrupts
TLB: 480 572 TLB shootdowns
TRM: 0 0 Thermal event interrupts
THR: 0 0 Threshold APIC interrupts
MCE: 0 0 Machine check exceptions
MCP: 2 2 Machine check polls
ERR: 0
MIS: 0
It has a singel IRQ, at 16, with the ax1600p driver.
Is the card bad hardware-ly?
Or is this a software error?
Yours Sincererly
Laszlo Balogh