[Serusers] problem with textops.subst()

Hello, I am having trouble with the textops' subst method. I am trying to rewrite the Contact header field for certain requests - and according to the debug output it seems to work (apart from the fact the the log output is scrambled): -- textops: subst_f: replacing at offset 341 [Contact: <sip:felix@192.168.0.66:5064;transport=udp>;methods="INVIT] with [Contact: <sip:felix@beluga.homeunix.org:5064;transport=udp>;methods="INVITE, MESSAGE, INFO, SUBSCRIBE, OPTIONS, B]E, CANCEL, NOTIFY, ACK" --- However, if I dump out the whole request directly after calling subst(), using 'exec_msg("echo REQUEST: ; cat - ; echo");', I get this: --- REQUEST: REGISTER sip:beluga.homeunix.org SIP/2.0 Via: SIP/2.0/UDP 192.168.0.66:5064 CSeq: 7656 REGISTER To: "Felix Schmid" <sip:felix@beluga.homeunix.org> Expires: 900 From: "Felix Schmid" <sip:felix@beluga.homeunix.org> Call-ID: 742144068(a)192.168.0.66 Content-Length: 0 User-Agent: KPhone/3.11 Event: registration Allow-Events: presence Contact: <sip:felix@192.168.0.66:5064;transport=udp>;methods="INVITE, MESSAGE, INFO, SUBSCRIBE, OPTIONS, BYE, CANCEL, NOTIFY, ACK" --- Why isn't the request in a rewritten state after subst() returns? regards, felix -- PGP-Key: http://belugalounge.net/~felix/Felix%20Schmid.asc