Multi: ISP /device / DNSs ?

My 3Gdongle connects OK, via the pppdScript which I morphed from
dial-up days: .......
pppd lcp-echo-interval 300 lcp-echo-failure 44 connect '
chat -v "" ATZ OK\
AT+CGDCONT=1 OK \
ATM2DT*99# CONNECT "" TIMEOUT 99 ' \
/dev/ttyACM0 460800 debug crtscts defaultroute usepeerdns
---
But for a FixedWirelessTerminal and a different ISP, I can ping, but
get <host not found>, using ....
pppd lcp-echo-interval 300 lcp-echo-failure 44 connect '
chat -v "" ATZ OK ATX OK ATM2DT#777 CONNECT "" TIMEOUT 99 ' \
/dev/ttyUSB0 38400 debug crtscts defaultroute nopersist\
: name "***" password "***"
---
/etc/resolv.conf is:
# Generated by dhcpcd for interface eth0
nameserver 196.207.32.83
---
but I'm not sure that that's used or even valid.
And I need the 2 systems to have their own <pppd script>.

What are some <openDNS> IP's,
and how do I 'script' the pppd to use my chosen DNS?

==TIA.

 

Can't help with the pppd connections, but the openDNS servers are:

208.67.220.220
208.67.222.222

 

Thanks !! That works when I update /etc/resolv.conf with your
supplied IPs.

Apparently the working ISP version was not using my perhaps
[by now] invalid IPs.

Wheezy's menu/form for setting up pppd is not good for
unusual configurations, and understanding the details of
pppd is too much.