AT&T U-verse → having some issues with phone service can these stats support our speed?

Broadband Status

Line State Up
Broadband Connection Up
Downstream Sync Rate (kbps) 3596
Upstream Sync Rate (kbps) 509
Modulation ADSL2+
Data Path Interleaved
Broadband IPv4 Address 104.189.140.218
Gateway IPv4 Address 104.189.140.1
MAC Address 6c:ca:08:1a:a0:21
Primary DNS 99.99.99.53
Secondary DNS 99.99.99.153
Primary DNS Name dns6rd1.sbcglobal.net
Secondary DNS Name dns6rd2.sbcglobal.net
MTU 1500
IPv6

Status Available
Global Unicast IPv6 Address 2602:306:8bd8:cda0::1/60
Border Relay IPv4 Address 12.83.49.81
IPv4 Statistics

Transmit Packets 343976
Transmit Errors 0
Transmit Discards 0
IPv6 Statistics

Transmit Packets 142146
Transmit Errors 0
Transmit Discards 0
Downstream and Upstream Statistics

Downstream Upstream
SN Margin (dB) 14.1 19.8
Line Attenuation (dB) 38.0 21.8
Output Power(dBm) 16.0 3.2
Errored Seconds 755 0
Loss of Signal 0 0
Loss of Frame 0 0
FEC Errors 9736 75
CRC Errors 4064 0

Yeah off the 510 last year there was improvement, you can be down all the way to 1.5M and still have VoIP. What types of issues are you experiencing? You're taking several CRC errors there but the noise margins look great for IPDSL.

the internet will intermittently stop for a moment then start again. the phone will work most of the time but it will occasionally "not call out" for no reason. those crc and fec errors were in a 1 hour range! our dsl we had speed issues like this.

Off the modem stats alone I'm not seeing anything that points to any obvious issue. I recommend emailing the social media team at attcustomercare@att.com where they can use some better tools to look at the line and help point you in a better direction from there.