Hotline/Warmline, also known as Private Line Automatic Ringdown (PLAR), is a line used for priority telephone service. When using with a SIP phone you must make sure the phone supports this feature. As of this writing I know that Polycom SIP phones support sending a signal to Asterisk upon the offhook event.
The Cisco ATA 18X series can run either SCCP, H323 or SIP voice protocols making it very flexible.
Another note of importance is that they do not support two ports running the G.729 codec simultaneously. If one port is using G.729, the other will use G.711. In this manual we are using a SIP firmware (ata_03_02_04_sccp_090202_a). If you want to update to other firmwares or perhaps protocols, I suggest you read the last 2 links provided in the resources section.
Configuring SPA3102 (or SPA3000) is not very straightforward and requires alot of configurations on both the Gateway and Asterisk PBX. Follow this instruction step by step.
Note that CLID and MTMF in IVR is successfully checked with this gateway.
This ATA support SIP and has only one FXS port. There is no routing function neither.
Here is a brief documentation on how it works:
This manual shows how to configure the GXW410x to function as a PEER gateway (no SIP accounts are needed; only used for one-stage dialing)
How to get the IP Address:
How to get the IP Address:
