diff --git a/app/src/main/kotlin/com/tutpro/baresip/MainActivity.kt b/app/src/main/kotlin/com/tutpro/baresip/MainActivity.kt
index 9d2eebc3..4dbcbc25 100644
--- a/app/src/main/kotlin/com/tutpro/baresip/MainActivity.kt
+++ b/app/src/main/kotlin/com/tutpro/baresip/MainActivity.kt
@@ -308,7 +308,7 @@ class MainActivity : AppCompatActivity() {
             val ua = UserAgent.uas()[aorSpinner.selectedItemPosition]
             val aor = ua.account.aor
             if (Call.calls().isEmpty()) {
-                val uriText = callUri.text.toString().trim()
+                val uriText = callUri.text.toString().filterNot { it.isWhitespace() }
                 if (uriText.isNotEmpty()) {
                     val uri = Utils.uriComplete(ContactsActivity.findContactURI(uriText),
                             Utils.aorDomain(aor))