Hello. I have some one provider that sends me BYE request with to_tag that kamailio can not parse

IP my.pro.vi.der.5060 > my.ser.vi.ce.5060: UDP, length 406

E.......x...S.0X_..L......8.BYE sip:0987654321@my.ser.vi.ce SIP/2.0

Via: SIP/2.0/UDP my.pro.vi.der:5060;branch=z9hG4bKsj7bv820c0s18k8a15q1sd000ag33.1

Call-ID: 00137fb21f65f19a3094c38b30d80f5c

CSeq: 1479 BYE

From: <sip:1234567890@my.pro.vi.der>;tag=SDi9r0899-5ci36vojn0

To: <sip:0987654321@my.pro.vi.der>;tag=as6635bbe1

Reason: Q.850;cause=16;text="Normal call clearing"

Max-Forwards: 69

Content-Length: 0

So I guess that problem in provider (may be ";" with another code)
But may be we have some instruments to get tag (without parsing strings in a config file or something like that )