diff --git a/src/sip/sipvoiplink.cpp b/src/sip/sipvoiplink.cpp
index 862bf9a53ebed4a9be4e1e8f9e55dc9e9291cf4c..c4c16fa49df509ed6689207903d1271599526410 100644
--- a/src/sip/sipvoiplink.cpp
+++ b/src/sip/sipvoiplink.cpp
@@ -494,7 +494,7 @@ SIPVoIPLink::SIPVoIPLink() : pool_(nullptr, pj_pool_release)
 } while (0)
 
     pj_caching_pool_init(&cp_, &pj_pool_factory_default_policy, 0);
-    pool_.reset(pj_pool_create(&cp_.factory, PACKAGE, 4096, 4096, nullptr));
+    pool_.reset(pj_pool_create(&cp_.factory, PACKAGE, 64 * 1024, 4096, nullptr));
     if (!pool_)
         throw VoipLinkException("UserAgent: Could not initialize memory pool");