To reproduce the issue you can create a NAPTR record with lot of data and then try to make a call to a domain that resolved via NAPTR/SRV
In my case 

Example

[safarov@safarov-dell ~]$ nslookup -type=NAPTR ok.nga911.com
;; Truncated, retrying in TCP mode.
Server: 127.0.0.53
Address: 127.0.0.53#53

Non-authoritative answer:
ok.nga911.com naptr = 100 10 "U" "LoST:findServiceByCivicAddress" "!.*!https://api.ok.nga911.com/api/v1/lost/find-service-by-civic-address!" .
ok.nga911.com naptr = 100 10 "U" "LoST:listServicesByLocation" "!.*!https://api.ok.nga911.com/api/v1/lost/list-services-by-location!" .
ok.nga911.com naptr = 100 10 "U" "LoST:listServices" "!.*!https://api.ok.nga911.com/api/v1/lost/list-services!" .
ok.nga911.com naptr = 100 10 "U" "LIS:HELD" "!.*!https://psap.ok.nga911.com/LIS/!" .
ok.nga911.com naptr = 50 500 "S" "SIPS+D2W" "" _sips._ws.ok.nga911.com.
ok.nga911.com naptr = 30 300 "S" "SIP+D2U" "" _sip._udp.ok.nga911.com.
ok.nga911.com naptr = 20 200 "S" "SIP+D2T" "" _sip._tcp.ok.nga911.com.
ok.nga911.com naptr = 100 10 "U" "LoST:findServiceByLocation" "!.*!https://api.ok.nga911.com/api/v1/lost/find-service-by-location!" .
ok.nga911.com naptr = 40 400 "S" "SIPS+D2T" "" _sip._tls.ok.nga911.com.

Authoritative answers can be found from:

NAPTR response UDP will not contain the whole responce.
you can see

;; Truncated, retrying in TCP mode.

If response via UDP do not contains
ok.nga911.com naptr = 30 300 "S" "SIP+D2U" "" _sip._udp.ok.nga911.com.

Then FS will fail place a call.


On Sun, Dec 12, 2021 at 10:15 PM Avi Marcus <avi@avimarcus.net> wrote:
Also FreeSWITCH Version 1.10.7-release-19-883d2cb662~64bit (-release-19-883d2cb662 64bit)
On debian 9.13

`sofia_dig -v @1.1.1.1 google.com` works, with and without the -v flag.


-Avi Marcus



On Sun, Dec 12, 2021 at 8:22 PM Antony Stone <Antony.Stone@freeswitch.open.source.it> wrote:
On Friday 10 December 2021 at 06:54:23, Podrigal, Aron wrote:

> Hi,
>
> I am experiencing weird behavior.
>
> I have my nameserver set to 1.1.1.1, doing sofia_dig returns no results,
> one request out of five succeeds.

I cannot reproduce that (FreeSwitch 1.10.7 running under Debian 10 / Devuan
3):

freeswitch> sofia_dig -v @1.1.1.1 google.com
Preference         Weight     Transport     Port     Address
================================================================================
@1.1.1.1   1       1.000         udp        5060     1.1.1.1
           2       1.000         tcp        5060     1.1.1.1
google.com 1       0.250         udp        5060     2a00:1450:4009:81e::200e
           1       0.250         tcp        5060     2a00:1450:4009:81e::200e
           1       0.250         udp        5060     142.250.187.206
           1       0.250         tcp        5060     142.250.187.206

I get a result every single time.


Antony.

--
<flopsie> yes, but this is #lbw, we don't do normal

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_________________________________________________________________________

The FreeSWITCH project is sponsored by SignalWire https://signalwire.com
Enhance your FreeSWITCH install with disruptive priced SMS and PSTN services.
Build your next product on our scalable cloud platform.

Join our online community to chat in real time https://signalwire.community

Professional FreeSWITCH Services
sales@freeswitch.com
https://freeswitch.com

Official FreeSWITCH Sites
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https://freeswitch.org/confluence
https://cluecon.com

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