In AMP add an extension (e.g. 200) to correspond to Line 1 on the SPA, ensure that port is 5060 and context is from-internal. Add a second extension (e.g. 280) for PSTN Line on SPA, ensure that port is 5061 and set context to from-pstn (disable voicemail & directory on this extension). In Trunks add a Sip trunk and copy the Outgoing block as follows (just leave Incoming as it is – do not delete the any defaults, but you do not need to change them either).: Trunk name sipura1 context=from-pstn fromuser=280 (or whatever extension you used) host=IP address of you SPA (needs to be fixed IP) port=5061 secret=your password type=peer username=280 (or whatever extension you used) Inbound User context sipura1-in Leave defaults in Inbound box and leave Register String blank. In DID Routes, add DID with a unique string (I used S followed by the PSTN number that the SPA is attached to – e.g. S12345678 Set an outbound route using the new sipura1 trunk. On the SPA 3000: Do the following configuration in admin login, advanced mode: In Line 1, make sure SIP port is 5060, & proxy points to your * Box, no outbound proxy. Fill out subscriber info with settings above e.g. User ID = 200, Password =***, Display Name =***. Set your preffered codec. In PSTN Line, ensure SIP Port = 5061 & proxy = Asterisk Box IP, no outbound proxy. Fill out subscriber info with Display Name =****, User ID = 280 (or whatever you used), & Password =****. Set preferred codec. It is vital that you Set Dial Plan 8 to (S0<:S12345678>) (or whatever string you used for the DID route in Asterisk). Ensure that both VoIP-To-PSTN Gateway Enable and PSTN-To-VoIP Gateway Enable are set to yes. Set PSTN Caller Default DP to 8. If you want incoming calls to all be sent to * then set PSTN Ring Thru Line 1 to no. Set PSTN Answer Delay to the number of seconds that you want the phone to ring for before sending it to your * box. Leave other settings on the SPA at factory defaults until you really know what you’re doing and want to fine-tune things. Lastly, make sure you plug into the line jack into the SPA and not the jack marked phone! I know this seems obvious, but I’ve missed this simple step before! The only kink with inbound using the settings posted is that you can’t have it ring to a phone plugged into the Sipura’s phone port. You can still call out, and the system will still pick up the call if you have auto attendant recieve the calls. But, if you set the inbound calls to ring extension 200, your calls will just go directly to voicemail. That aside, you can have any other phone on the system ring for inbound calls directly, or set a ring group.
