bugfix: inject DMTF flag was inserted over and over

Co-authored-by: Joan Salvatella <joan@bookline.io>

lib/db-utils.js

@@ -139,7 +139,7 @@ module.exports = (srf, logger) => {
           /* we have one or more carriers that match.  Now we need to find one with a provisioned phone number */
           const vc_sids = matches.map((m) => `'${m.voip_carrier_sid}'`).join(',');
           const did = normalizeDID(req.calledNumber);
-          const sql =  `SELECT * FROM phone_numbers WHERE number = ${did} AND voip_carrier_sid IN (${vc_sids})`;
+          const sql =  `SELECT * FROM phone_numbers WHERE number = '${did}' AND voip_carrier_sid IN (${vc_sids})`;
           logger.debug({matches, sql, did, vc_sids}, 'looking up DID');
 
           const [r] = await pp.query(sql);

lib/utils.js

@@ -12,10 +12,12 @@ const getAppserver = (srf) => {
 };
 
 function makeRtpEngineOpts(req, srcIsUsingSrtp, dstIsUsingSrtp, teams = false) {
+  const rtpCopy = JSON.parse(JSON.stringify(rtpCharacteristics));
+  const srtpCopy = JSON.parse(JSON.stringify(srtpCharacteristics));
   const from = req.getParsedHeader('from');
-  const srtpOpts = teams ? srtpCharacteristics['teams'] : srtpCharacteristics['default'];
-  const dstOpts = dstIsUsingSrtp ? srtpOpts : rtpCharacteristics;
-  const srcOpts = srcIsUsingSrtp ? srtpOpts : rtpCharacteristics;
+  const srtpOpts = teams ? srtpCopy['teams'] : srtpCopy['default'];
+  const dstOpts = dstIsUsingSrtp ? srtpOpts : rtpCopy;
+  const srcOpts = srcIsUsingSrtp ? srtpOpts : rtpCopy;
 
   /* webrtc clients (e.g. sipjs) send DMTF via SIP INFO */
   if ((srcIsUsingSrtp || dstIsUsingSrtp) && !teams) {