id summary reporter owner description type status priority milestone component version resolution keywords cc backport_to_milestone backported 8 Fix escaping rules in To/From tag and Via parameter bennylp bennylp "Latest situation is, some UA sends % characters as part of header fields (e.g. Via branch param, From/To tag param). Probably PJSIP is not supposed to unescape these header fields, but it does, and it's causing the header field to be escaped when sending the response. Fortunately this is not happening with too much UA (only one that I'm aware of) so this bug is minor. " defect new minor Known-Issues-and-Ideas pjsip