diff --git a/crates/sip-core/src/transport/mod.rs b/crates/sip-core/src/transport/mod.rs
index bb3a528..fa78a94 100644
--- a/crates/sip-core/src/transport/mod.rs
+++ b/crates/sip-core/src/transport/mod.rs
@@ -382,7 +382,7 @@ impl Transports {
             let transport_param_matches = uri
                 .transport
                 .as_ref()
-                .map_or(true, |t| tp.matches_transport_param(t));
+                .is_none_or(|t| tp.matches_transport_param(t));
 
             addr_familiy_supported
                 && transport_name_matches
diff --git a/crates/sip-core/src/transport/stun_user.rs b/crates/sip-core/src/transport/stun_user.rs
index 95149b0..5260897 100644
--- a/crates/sip-core/src/transport/stun_user.rs
+++ b/crates/sip-core/src/transport/stun_user.rs
@@ -45,7 +45,7 @@ impl Transports {
         let tsx_id = TransactionId::random();
 
         let mut msg = MessageBuilder::new(Class::Request, Method::Binding, tsx_id);
-        msg.add_attr(&Software::new("ezk")).unwrap();
+        msg.add_attr(Software::new("ezk"));
         let bytes = msg.finish();
 
         let request = stun::Request {