diff --git a/airoha/an7581/UNION_AN7581_KITE_LOGAN_KERNEL_5_4_demo.mak b/airoha/an7581/UNION_AN7581_KITE_LOGAN_KERNEL_5_4_demo.mak
index dbde2ab95874147b2a8da03a0b8f3555f14412f4..e81b8ac3ce1eab3ede7a7b7326c94a960e9246d3 100644
--- a/airoha/an7581/UNION_AN7581_KITE_LOGAN_KERNEL_5_4_demo.mak
+++ b/airoha/an7581/UNION_AN7581_KITE_LOGAN_KERNEL_5_4_demo.mak
@@ -359,7 +359,7 @@ TCSUPPORT_VOIP=y
 TCSUPPORT_VOIP_SRTP=y
 TCSUPPORT_ECN_SIP=y
 TCSUPPORT_ECN_MEGACO=y
-VOIP_MAX_CHAN=2
+VOIP_MAX_CHAN=16
 TCSUPPORT_CWMP=y
 # TCSUPPORT_CWMP_CRPORTCHANGE is not set
 # TCSUPPORT_CWMP_PRECISE_TIME is not set