add fieldpoc dect claim script

hosts/yate/dect_claim.py

@@ -0,0 +1,30 @@
+import asyncio
+import os
+import re
+import socket
+
+from yate.ivr import YateIVR
+
+SOUNDS_PATH = "/run/current-system/sw/share/sounds/yate"
+
+
+async def main(ivr: YateIVR):
+    caller_id = ivr.call_params.get("caller", "")
+    caller_id = re.sub("[^\\d]", "", caller_id)
+    called_id = ivr.call_params.get("called", "")
+    called_id = re.sub("[^\\d]", "", called_id)
+
+    await ivr.play_soundfile(
+                             os.path.join(SOUNDS_PATH, "yintro.slin"),
+                             complete=True)
+    await asyncio.sleep(0.5)
+
+    with socket.socket(socket.AF_INET, socket.SOCK_STREAM) as s:
+        s.connect(("localhost", 9437))
+        s.recv(1024)
+        s.sendall(f"claim {caller_id} {called_id}".encode('utf-8'))
+        s.recv(1024)
+
+
+app = YateIVR()
+app.run(main)

hosts/yate/voip.nix

@@ -42,4 +42,12 @@
 [dialin]
 \${sip_x-called}^.*$=lateroute/\\1";
   };
+
+  environment.systemPackages = with pkgs; [
+    (writers.makePythonWriter python39 python39.pkgs "/bin/dect_claim" { libraries = [ python39.pkgs.python-yate ]; } (builtins.readFile ./dect_claim.py))
+    (runCommand "yintro.slin" {} ''
+      mkdir -p $out/share/sounds/yate
+      ln -s ${./yintro.slin} $out/share/sounds/yate/yintro.slin
+    '')
+  ];
 }