On 01 Sep 2024, Warpslide said the following...
On 01 Sep 2024, Grant Weasner said the following...
what equipment and setup are you using with your USB modem?
I'm trying to get my own USR 56k to connect over VOIP through my cisc sp122 ata, but no handshake completes.
Hi Grant,
I don't have this setup anymore, but I was using a StarTech ICUSB232 USB to Serial adapter plugged into a USR Sportster 56k modem. For the phone line I was using a Cisco SPA112 provisioned with service from voip.ms.
I remember there were a couple of settings I needed to change on the SPA112, making sure the firmware was updated (1.4.1 SR5) and some
changes under audio configuration to get it to connect at all.
I believe I used the settings from this page: https://gekk.info/articles/ata-config.html#Troubleshooting
Troubleshooting Section 2 are the settings you're after.
Jay
Thanks Jay,
The link you sent provided the infor for me to verify my spa122 is working.
I can connect at 33600, but no faster, but I'm ok with that.
I still have more work to figure out why I can't connect via asterisk.
I'll also have to understand the DialPlan syntax more. It seems something with that might help me.
Info that I used:
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URL:
https://gekk.info/articles/ata-config.html#Troubleshooting ===============================================================================
VoIP Setup
Once you have web access to the SPA as above, you can configure the ports. We will use the bogus number 9095551010, but if you want to use another one, just replace it (in yellow) below.
1. Log into the web interface
2. Go to the Voice section, then Line 1
1. Set Make Call Without Reg and Ans Call Without Reg to yes
2. Set User ID to 100
3. Scroll down and find Dialplan, and replace its contents with the following: o (*xx|[3469]11|0|00|[2-9]xxxxxx|1xxx[2-9]xxxxxxS0|xxxxxxxxxxxx.|<9095551010:101>S0<:@127.0.0.1:5061>|)
4. Under the Audio Configuration section, set everything that says Fax to no
5. Click Submit and wait about two minutes, then click on the Voice tab again if it doesn't redirect
3. Go to Line 2
1. Set Make Call Without Reg and Ans Call Without Reg to yes
2. Set User ID to 101
3. Scroll down and find Dialplan, and replace its contents with the following (it's different, so don't just reuse the first one!):
o (*xx|[3469]11|0|00|[2-9]xxxxxx|1xxx[2-9]xxxxxxS0|xxxxxxxxxxxx.|<9095551010:100>S0<:@127.0.0.1:5060>|)
4. Under the Audio Configuration section, set everything that says Fax to no
5. Click Submit and wait about two minutes, then click on the Voice tab again if it doesn't redirect
4. Configuration is complete!
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Troubleshooting
This should just work, but here are a couple things you can do if it doesn't: 1. Test basic dialing functionality:
1. Get a plain, basic telephone and plug it into one port
2. Try to dial 9095551010. Regardless of what's plugged into the other port, you should hear ringing. If you hear busy signal or dead air, you missed a config step.
3. If you have a second phone, plug it into the other port. Test dialing 9095551010 from either one; it should ring the other set and you should be able to pick up and talk.
4. If all of the above works then there's nothing wrong with the ATA dialing
2. Apply data optimization settings:
1. The instructions given earlier include the necessary step of disabling fax detection, but if that isn't enough, you can do this too.
2. In Line 1 and Line 2, apply the settings below. They will tell the ATA not to try to "help" and should cause it to just pass through audio unmodified.
1. After applying the settings to Line 1 and hitting Submit, make sure you wait for the page to reload before moving on to Line 2.
3. In the Network Settings section:
o Network Jitter Level: Extremely high
o Jitter Buffer Adjustment: No 4. In the Audio Configuration section:
o Preferred Codec: g711u
o Second and Third Preferred Codec: Unspecified
o G729a Enable: No
o Silence Supp Enable: No
o Echo Canc Enable: No o Everything that says Fax: No
o Modem Line: Yes
3. If you're not getting any dialtone, check that the SPA has an active Ethernet link on the blue port. If it doesn't have a connection and a valid IP, it'll shut off the voice module.
4. You will not get a 56k connection speed no matter what you do - the V.90 and V.92 specifications explicitly state that the modems you have ("analog modems") are only capable of originating a 33.6 connection. You need special ISP equipment to originate a 56k connection.
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