diff --git a/tests/test_reliability.nim b/tests/test_reliability.nim
index 8fd52a6..7b68a86 100644
--- a/tests/test_reliability.nim
+++ b/tests/test_reliability.nim
@@ -591,54 +591,82 @@ suite "Multi-Channel ReliabilityManager Tests":
       msgId1 notin history2
       msgId2 notin history1
 
-  # test "multi-channel callbacks":
-  #   var readyMessages: seq[(SdsMessageID, SdsChannelID)] = @[]
-  #   var sentMessages: seq[(SdsMessageID, SdsChannelID)] = @[]
-  #   var missingDeps: seq[(SdsMessageID, seq[SdsMessageID], SdsChannelID)] = @[]
+  test "multi-channel callbacks":
+    var readyMessageCount = 0
+    var sentMessageCount = 0
+    var missingDepsCount = 0
 
-  #   rm.setCallbacks(
-  #     proc(messageId: SdsMessageID, channelId: SdsChannelID) {.gcsafe.} =
-  #       readyMessages.add((messageId, channelId)),
-  #     proc(messageId: SdsMessageID, channelId: SdsChannelID) {.gcsafe.} =
-  #       sentMessages.add((messageId, channelId)),
-  #     proc(messageId: SdsMessageID, deps: seq[SdsMessageID], channelId: SdsChannelID) {.gcsafe.} =
-  #       missingDeps.add((messageId, deps, channelId))
-  #   )
+    rm.setCallbacks(
+      proc(messageId: SdsMessageID, channelId: SdsChannelID) {.gcsafe.} =
+        readyMessageCount += 1,
+      proc(messageId: SdsMessageID, channelId: SdsChannelID) {.gcsafe.} =
+        sentMessageCount += 1,
+      proc(messageId: SdsMessageID, deps: seq[SdsMessageID], channelId: SdsChannelID) {.gcsafe.} =
+        missingDepsCount += 1
+    )
 
-  #   let channel1 = "callback-channel-1"
-  #   let channel2 = "callback-channel-2"
+    let channel1 = "callback-channel-1"
+    let channel2 = "callback-channel-2"
 
-  #   # Create messages in different channels
-  #   let msg1 = @[byte(1)]
-  #   let msgId1 = "callback-msg1"
-  #   let wrapped1 = rm.wrapOutgoingMessage(msg1, msgId1, channel1)
-  #   check wrapped1.isOk()
+    # Send messages from both channels
+    let msg1 = @[byte(1)]
+    let msgId1 = "callback-msg1"
+    let wrapped1 = rm.wrapOutgoingMessage(msg1, msgId1, channel1)
+    check wrapped1.isOk()
 
-  #   let msg2 = @[byte(2)]
-  #   let msgId2 = "callback-msg2"
-  #   let wrapped2 = rm.wrapOutgoingMessage(msg2, msgId2, channel2)
-  #   check wrapped2.isOk()
+    let msg2 = @[byte(2)]
+    let msgId2 = "callback-msg2"
+    let wrapped2 = rm.wrapOutgoingMessage(msg2, msgId2, channel2)
+    check wrapped2.isOk()
 
-  #   # Process messages - should trigger callbacks with correct channel IDs
-  #   discard rm.unwrapReceivedMessage(wrapped1.get())
-  #   discard rm.unwrapReceivedMessage(wrapped2.get())
+    # Create acknowledgment messages that include our message IDs in causal history
+    # to trigger sent callbacks
+    let ackMsg1 = SdsMessage(
+      messageId: "ack1",
+      lamportTimestamp: rm.channels[channel1].lamportTimestamp + 1,
+      causalHistory: @[msgId1], # Acknowledge msg1
+      channelId: channel1,
+      content: @[byte(100)],
+      bloomFilter: @[],
+    )
 
-  #   check:
-  #     readyMessages.len == 2
-  #     (msgId1, channel1) in readyMessages
-  #     (msgId2, channel2) in readyMessages
+    let ackMsg2 = SdsMessage(
+      messageId: "ack2",
+      lamportTimestamp: rm.channels[channel2].lamportTimestamp + 1,
+      causalHistory: @[msgId2], # Acknowledge msg2
+      channelId: channel2,
+      content: @[byte(101)],
+      bloomFilter: @[],
+    )
 
-  # test "channel-specific dependency management":
-  #   let channel1 = "dep-channel-1"
-  #   let depIds = @["dep1", "dep2", "dep3"]
+    let serializedAck1 = serializeMessage(ackMsg1)
+    let serializedAck2 = serializeMessage(ackMsg2)
+    check:
+      serializedAck1.isOk()
+      serializedAck2.isOk()
 
-  #   # Mark dependencies as met for specific channel
-  #   check rm.markDependenciesMet(depIds, channel1).isOk()
+    # Process acknowledgment messages - should trigger callbacks
+    discard rm.unwrapReceivedMessage(serializedAck1.get())
+    discard rm.unwrapReceivedMessage(serializedAck2.get())
 
-  #   # Dependencies should only affect the specified channel
-  #   let channel2 = "dep-channel-2"
-  #   check rm.ensureChannel(channel2).isOk()
+    check:
+      readyMessageCount == 2  # Both ack messages should trigger ready callbacks
+      sentMessageCount == 2  # Both original messages should be marked as sent
+      missingDepsCount == 0   # No missing dependencies
 
-  #   # Dependencies in channel1 should not affect channel2
-  #   check rm.channels[channel1].bloomFilter.contains("dep1")
-  #   check not rm.channels[channel2].bloomFilter.contains("dep1")
+  test "channel-specific dependency management":
+    let channel1 = "dep-channel-1"
+    let channel2 = "dep-channel-2"
+    let depIds = @["dep1", "dep2", "dep3"]
+
+    # Ensure both channels exist first
+    check rm.ensureChannel(channel1).isOk()
+    check rm.ensureChannel(channel2).isOk()
+
+    # Mark dependencies as met for specific channel
+    check rm.markDependenciesMet(depIds, channel1).isOk()
+
+    # Dependencies should only affect the specified channel
+    # Dependencies in channel1 should not affect channel2
+    check rm.channels[channel1].bloomFilter.contains("dep1")
+    check not rm.channels[channel2].bloomFilter.contains("dep1")