search for: numberi

Hello all, I have seen some chatter again about DTMF. I see most of the talk about DTMF around not being able to get an external IVR to recognize digits, not a big issue for me at this time but sill interesting. My issue though, is with talk off on a zap channel. It seems to be getting worse or maybe my patience is thinning. All my calls go out and come in pstn through an FXO as I do not

Dear All, Sorry, cause this is OT. I am asking this for my client, they hope to find a simple open source web base software with invoicing and serial no tracking, preferably if can generate continuous serial no by its own. Thanks in advance. David