[Freeswitch-users] What is the way to send gateway name from mod_gsmopen to softphone?

Sorry for my english. I use the FreeSWITCH 1.5.8b+git~20140202T113337Z~9059fb91cc~64bit (Wheezy 64bit) and mod_gsmopen (13xE1550) for a month. Now I must identify gateway/line which is calling for extension. The name gateway (gsmopen: gsm01, gsm02 ...) must be displayed on softphone (xlite, jitsi) together with the number of callers. What is the way/mod etc... that will make it possible? Przemysław Pereć