diff --git a/resources/templates/provision/yealink/t46s/{$mac}.cfg b/resources/templates/provision/yealink/t46s/{$mac}.cfg
index d5e22fba27..d6ce479a08 100644
--- a/resources/templates/provision/yealink/t46s/{$mac}.cfg
+++ b/resources/templates/provision/yealink/t46s/{$mac}.cfg
@@ -696,7 +696,7 @@ account.1.sip_server.2.invite_retry_counts=
 account.1.static_cache_pri=
 account.1.dns_cache_type=
 account.1.naptr_build=
-account.1.fallback.timeout=
+account.1.fallback.timeout = {yealink_outbound_proxy_fallback_interval}
 account.1.fallback.redundancy_type=
 account.1.reg_failed_retry_max_time=
 account.1.reg_failed_retry_min_time=
@@ -735,7 +735,7 @@ account.2.sip_server.2.invite_retry_counts=
 account.2.static_cache_pri=
 account.2.dns_cache_type=
 account.2.naptr_build=
-account.2.fallback.timeout=
+account.2.fallback.timeout = {yealink_outbound_proxy_fallback_interval}
 account.2.fallback.redundancy_type=
 account.2.reg_failed_retry_max_time=
 account.2.reg_failed_retry_min_time=
@@ -776,7 +776,7 @@ account.3.sip_server.2.invite_retry_counts=
 account.3.static_cache_pri=
 account.3.dns_cache_type=
 account.3.naptr_build=
-account.3.fallback.timeout=
+account.3.fallback.timeout = {yealink_outbound_proxy_fallback_interval}
 account.3.fallback.redundancy_type=
 account.3.reg_failed_retry_max_time=
 account.3.reg_failed_retry_min_time=
@@ -817,7 +817,7 @@ account.4.sip_server.2.invite_retry_counts=
 account.4.static_cache_pri=
 account.4.dns_cache_type=
 account.4.naptr_build=
-account.4.fallback.timeout=
+account.4.fallback.timeout = {yealink_outbound_proxy_fallback_interval}
 account.4.fallback.redundancy_type=
 account.4.reg_failed_retry_max_time=
 account.4.reg_failed_retry_min_time=
@@ -857,7 +857,7 @@ account.5.sip_server.2.invite_retry_counts=
 account.5.static_cache_pri=
 account.5.dns_cache_type=
 account.5.naptr_build=
-account.5.fallback.timeout=
+account.5.fallback.timeout = {yealink_outbound_proxy_fallback_interval}
 account.5.fallback.redundancy_type=
 account.5.reg_failed_retry_max_time=
 account.5.reg_failed_retry_min_time=
@@ -897,7 +897,7 @@ account.6.sip_server.2.invite_retry_counts=
 account.6.static_cache_pri=
 account.6.dns_cache_type=
 account.6.naptr_build=
-account.6.fallback.timeout=
+account.6.fallback.timeout = {yealink_outbound_proxy_fallback_interval}
 account.6.fallback.redundancy_type=
 account.6.reg_failed_retry_max_time=
 account.6.reg_failed_retry_min_time=