diff --git a/lib/session/call-session.js b/lib/session/call-session.js
index ca99dde7..6c50139f 100644
--- a/lib/session/call-session.js
+++ b/lib/session/call-session.js
@@ -751,7 +751,9 @@ class CallSession extends Emitter {
         else if ('deepgram' === vendor) {
           return {
             speech_credential_sid: credential.speech_credential_sid,
-            api_key: credential.api_key
+            api_key: credential.api_key,
+            deepgram_stt_uri: credential.deepgram_stt_uri,
+            deepgram_stt_use_tls: credential.deepgram_stt_use_tls
           };
         }
         else if ('soniox' === vendor) {
diff --git a/lib/utils/db-utils.js b/lib/utils/db-utils.js
index 197de921..9973f59e 100644
--- a/lib/utils/db-utils.js
+++ b/lib/utils/db-utils.js
@@ -75,6 +75,8 @@ const speechMapper = (cred) => {
     else if ('deepgram' === obj.vendor) {
       const o = JSON.parse(decrypt(credential));
       obj.api_key = o.api_key;
+      obj.deepgram_stt_uri = o.deepgram_stt_uri;
+      obj.deepgram_stt_use_tls = o.deepgram_stt_use_tls;
     }
     else if ('soniox' === obj.vendor) {
       const o = JSON.parse(decrypt(credential));
diff --git a/lib/utils/transcription-utils.js b/lib/utils/transcription-utils.js
index f1585a17..79250e31 100644
--- a/lib/utils/transcription-utils.js
+++ b/lib/utils/transcription-utils.js
@@ -144,6 +144,7 @@ const selectDefaultDeepgramModel = (task, language) => {
     const [gather, transcribe] = optimalDeepramModels[language];
     return task.name === TaskName.Gather ? gather : transcribe;
   }
+  return 'base';
 };
 
 const consolidateTranscripts = (bufferedTranscripts, channel, language) => {
@@ -614,18 +615,24 @@ module.exports = (logger) => {
       };
     }
     else if ('deepgram' === vendor) {
+      let {model} = rOpts;
       const {deepgramOptions = {}} = rOpts;
-      if (!deepgramOptions.model) {
-        deepgramOptions.model = selectDefaultDeepgramModel(task, language);
+      const deepgramUri = deepgramOptions.deepgramSttUri || sttCredentials.deepgram_stt_uri;
+      const useTls = deepgramOptions.deepgramSttUseTls || sttCredentials.deepgram_stt_use_tls;
+
+      /* default to a sensible model if not supplied */
+      if (!model) {
+        model = selectDefaultDeepgramModel(task, language);
       }
       opts = {
         ...opts,
+        DEEPGRAM_SPEECH_MODEL: model,
+        ...(deepgramUri && {DEEPGRAM_URI: deepgramUri}),
+        ...(deepgramUri && useTls && {DEEPGRAM_USE_TLS: 1}),
         ...(sttCredentials.api_key) &&
           {DEEPGRAM_API_KEY: sttCredentials.api_key},
         ...(deepgramOptions.tier) &&
           {DEEPGRAM_SPEECH_TIER: deepgramOptions.tier},
-        ...(deepgramOptions.model) &&
-          {DEEPGRAM_SPEECH_MODEL: deepgramOptions.model},
         ...(deepgramOptions.punctuate) &&
           {DEEPGRAM_SPEECH_ENABLE_AUTOMATIC_PUNCTUATION: 1},
         ...(deepgramOptions.smartFormatting) &&