Lately, I've noticed an interesting phenomenon when making calls from my Fusion line.
For about 60-70% of the calls I dial, I hear a ringback tone almost immediately after I hit the last digit. Even before the first cycle of that ringback tone has completed, I then hear a second ringback tone, usually at a different volume and/or pitch. That second ringback tone then cycles until the line is answered.
There's one number that I call that has an even odder situation. It's often busy (the person I'm calling is VERY busy). When I dial it, I hear a ringback tone for 1/2-3/4 second, then I hear the busy signal.
Does the Sonic.net switch generate a local ringback tone while the connection is being established, then the switch for the called number provides the ringback tone once the connection is complete?
This is similar behavior to what AT&T Wireless does when setting up incoming calls. A ringback tone is provided by the callee's home switch, and once the network locates the phone, the switch serving the area where the phone is located provides the ringback tone. I just hadn't encountered this before with landline phones.
I also encountered this with a former long distance company when I placed calls to the U.K. After dialing the call, I'd immediately hear an American ringback tone, instead of the usual British cadence. Except in that situation, the American ringback tone continued until the call was answered. Calling the same number from a different line (not subscribed to the same IXC) would get the British ringback tone.
For about 60-70% of the calls I dial, I hear a ringback tone almost immediately after I hit the last digit. Even before the first cycle of that ringback tone has completed, I then hear a second ringback tone, usually at a different volume and/or pitch. That second ringback tone then cycles until the line is answered.
There's one number that I call that has an even odder situation. It's often busy (the person I'm calling is VERY busy). When I dial it, I hear a ringback tone for 1/2-3/4 second, then I hear the busy signal.
Does the Sonic.net switch generate a local ringback tone while the connection is being established, then the switch for the called number provides the ringback tone once the connection is complete?
This is similar behavior to what AT&T Wireless does when setting up incoming calls. A ringback tone is provided by the callee's home switch, and once the network locates the phone, the switch serving the area where the phone is located provides the ringback tone. I just hadn't encountered this before with landline phones.
I also encountered this with a former long distance company when I placed calls to the U.K. After dialing the call, I'd immediately hear an American ringback tone, instead of the usual British cadence. Except in that situation, the American ringback tone continued until the call was answered. Calling the same number from a different line (not subscribed to the same IXC) would get the British ringback tone.