service SIP error

[mylove142]

Hi all,
I use Checkpoint VSX NGAI v2.5 + Crossbeam X40.
I want to know how to put rule with service SIP, I have two customer:
Customer A: 202.78.x.4/28
Customer B: 202.78.x.6/28

Customer A uses only service SIP (5060), customer B uses service SIP (5060) and any more service.

I put rule:

Source Destination Service
1. Customer A any SIP
2. Any CustomerA SIP
3. Customer B any any
4. Any CustomerB any

Customer A can use service SIP but all of traffic of customer B uses service SIP will be drop. I see the error: ""ip validator: out of state".

After that, I put rule
Source Destination Service
1. Customer A any any
2. Any CustomerA any
3. Customer B any any
4. Any CustomerB any

Both customer A and Customer B can use service SIP.

If you know the cause of error, please answer me early.

Thank you for your answer.