$ sudo pon att-EMA     
ATZ
OK
ATD*99***1#
CONNECT
Script /usr/sbin/chat -v -f /etc/ppp/peers/att-EMA-chat finished (pid 4475), status = 0x0
Serial connection established.
using channel 5
Using interface ppp0
Connect: ppp0 <--> /dev/ttyACM0
sent [LCP ConfReq id=0x1 <asyncmap 0x0> <magic 0x6e4a7283> <pcomp> <accomp>]
rcvd [LCP ConfReq id=0x1 <asyncmap 0x0> <magic 0x52181044> <pcomp> <accomp>]
sent [LCP ConfAck id=0x1 <asyncmap 0x0> <magic 0x52181044> <pcomp> <accomp>]
rcvd [LCP ConfAck id=0x1 <asyncmap 0x0> <magic 0x6e4a7283> <pcomp> <accomp>]
sent [LCP EchoReq id=0x0 magic=0x6e4a7283]
sent [CCP ConfReq id=0x1 <deflate 15> <deflate(old#) 15> <bsd v1 15>]
sent [IPCP ConfReq id=0x1 <compress VJ 0f 01> <addr 0.0.0.0> <ms-dns1 0.0.0.0> <ms-dns2 0.0.0.0>]
rcvd [LCP EchoRep id=0x0 magic=0x52181044]
rcvd [LCP ProtRej id=0x2 80 fd 01 01 00 0f 1a 04 78 00 18 04 78 00 15]
Protocol-Reject for 'Compression Control Protocol' (0x80fd) received
sent [IPCP ConfReq id=0x1 <compress VJ 0f 01> <addr 0.0.0.0> <ms-dns1 0.0.0.0> <ms-dns2 0.0.0.0>]
rcvd [IPCP ConfReq id=0x1]
sent [IPCP ConfNak id=0x1 <addr 0.0.0.0>]
rcvd [IPCP ConfRej id=0x1 <compress VJ 0f 01>]
sent [IPCP ConfReq id=0x2 <addr 0.0.0.0> <ms-dns1 0.0.0.0> <ms-dns2 0.0.0.0>]
rcvd [IPCP ConfReq id=0x2 <addr 10.175.50.103>]
sent [IPCP ConfAck id=0x2 <addr 10.175.50.103>]
rcvd [IPCP ConfNak id=0x2 <addr 10.175.50.103> <ms-dns1 8.8.8.8> <ms-dns2 8.8.4.4>]
sent [IPCP ConfReq id=0x3 <addr 10.175.50.103> <ms-dns1 8.8.8.8> <ms-dns2 8.8.4.4>]
rcvd [IPCP ConfAck id=0x3 <addr 10.175.50.103> <ms-dns1 8.8.8.8> <ms-dns2 8.8.4.4>]
replacing old default route to eth0 [192.168.64.1]
local  IP address 10.175.50.103
remote IP address 10.175.50.103
primary   DNS address 8.8.8.8
secondary DNS address 8.8.4.4
kyle@rpitest:~ $ route
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
default         0.0.0.0         0.0.0.0         U     0      0        0 ppp0
x.x.x.x         0.0.0.0         255.255.255.0   U     202    0        0 eth0