rtp300 - No ringback tone with magicjack

[walletless]

Hi all,

I have an unlocked RTP300 that I got from Vonage. I have configured the device with the Magicjack SIP settings.

So far, I am able to place and receive calls without much issues. The only thing not working at this point is the ring back tone - when I dial out a number, I hear no tone (just blank output) until the receiving party answers the call.

I have tried various things after reading online:
1) Change the dial plan and tried the following:
*xxT|*1xx|[349]11|1xxx[2-9]xxxxxx|[2-9]xxxxxxT|[2-9]xxxxxxxxx|011x.T
and
(*xx|[3469]11|0|00|[2-9]xxxxxx|1xxx[2-9]xxxxxxS0|xxxxxxxxxxxx.)
and
xx.

2) Changed the codec from G711u to G711a

3) Tried the following ring back tones:
440@-19,480@-19;*(2/4/1+2)
and
400@-19,425@-19,450@-19;*(.4/.2/1+2+3,.4/2/1+2+3)


None of these have helped so far. Does anyone have clues on what I can try next?
My current setup is as follows:
phone jack -> Linksys WAG 200g DSL modem -> Linksys RTP 300

When dialling out, the router page shows "Line 1 status" as "dialling", and "Line 1 tone" as "none" (instead of "ringing")

Thanks in advance for any help...