Hi Alberto

I have tried making the setup with G711 passtru, but it is not working.

I must try some other settings, and se if I can get it to work.

Thanks for the answer.

Martin

Hi, I was also trying to use the same configuration as you to connect a modem to a PSTN line.

I find it incredible that faxes send and receive perfectly.

If I use either the SPA3102 or SPA2102 to connect a modem using a direct VOIP connection to my local VOIP provider the modem connection works but not when they are connected together (even for testing purposes on a lan).

I hope someone can shed some light on this for me.

Many Thanks,

Jonny Lynn

Modem pass-through mode can be triggered only by predialing the number set in the Modem Line Toggle Code in the Regional tab.

Modem Line Toggle Code: *99 and must be prepand to the called number. Modem pass-through mode can be triggered only by predialing this code.

To optimize fax/modem completion rates, complete the following steps:

1. Upgrade the Linksys ATA firmware to the latest version

2. Ensure that you have enough bandwidth for uplink and downlink (for G.711 is recommend to have approximately 100Kbps)

3. set the following on the Line tab of your Linksys ATA device:

• Network Jitter Buffer: very high

• Jitter buffer adjustment: disable

• Call Waiting: no

• 3 Way Calling: no

• Echo Canceller: no

• Silence suppression: no

• Preferred Codec: G.711

• Use pref. codec only: yes

Regards.