attempt #1 fix pbx issue

src/pbx/handlers/PageDTMF.ts

@@ -24,14 +24,15 @@ export default class PageDTMF extends Handler {
     const pagerNumber: string[] = [];
     const pagerCode: string[] = [];
     channel.answer();
-    const pnPlayback = await channel.play({
+    const pnPlaybackC = this.pbx.ari.Playback();
+    channel.play({
       media: 'sound:please-enter-the-pn',
-    }, undefined);
+    }, pnPlaybackC);
     channel.on('ChannelDtmfReceived', async (ev) => {
       if (!channel.connected) return;
       if (status === 0) {
         if (ev.digit === '#') {
-          await pnPlayback.stop();
+          await pnPlaybackC.stop();
           await channel.play({
             media: 'sound:please-enter-the-pc',
           }, undefined);