calls come through and go through just fine from both lines.
Logs
VERBOSE[27828][C-000006d7] pbx.c: Executing [s@from-sip-external:7] Answer(“SIP/10.0.0.30-00000ef7”, “”) in new stack
VERBOSE[27828][C-000006d7] pbx.c: Executing [s@from-sip-external:8] Wait(“SIP/10.0.0.30-00000ef7”, “2”) in new stack
VERBOSE[27828][C-000006d7] pbx.c: Executing [s@from-sip-external:9] Playback(“SIP/10.0.0.30-00000ef7”, “ss-noservice”) in new stack
VERBOSE[27828][C-000006d7] file.c: <SIP/10.0.0.30-00000ef7> Playing ‘ss-noservice.ulaw’ (language ‘en’)
VERBOSE[27823][C-000006d6] app_dial.c: Connected line update to SIP/225-00000ef5 prevented.
[2019-05-09 14:06:36] VERBOSE[27823][C-000006d6] app_dial.c: SIP/227-00000ef6 answered SIP/225-00000ef5
VERBOSE[27831][C-000006d6] bridge_channel.c: Channel SIP/227-00000ef6 joined ‘simple_bridge’ basic-bridge <1033b3cb-ff69-4cac-ae8f-71fdf6b95735>
VERBOSE[27823][C-000006d6] bridge_channel.c: Channel SIP/225-00000ef5 joined ‘simple_bridge’ basic-bridge <1033b3cb-ff69-4cac-ae8f-71fdf6b95735>
VERBOSE[2434] chan_sip.c: Extension Changed 227[ext-local] new state InUse for Notify User 221
[2019-05-09 14:06:36] VERBOSE[2434] chan_sip.c: Extension Changed 227[ext-local] new state InUse for Notify User 222
VERBOSE[27828][C-000006d7] pbx.c: Executing [s@from-sip-external:10] PlayTones(“SIP/10.0.0.30-00000ef7”, “congestion”) in new stack
VERBOSE[27828][C-000006d7] pbx.c: Executing [s@from-sip-external:11] Congestion(“SIP/10.0.0.30-00000ef7”, “5”) in new stack
VERBOSE[27831][C-000006d6] bridge_channel.c: Channel SIP/227-00000ef6 left ‘simple_bridge’ basic-bridge <1033b3cb-ff69-4cac-ae8f-71fdf6b95735>
VERBOSE[27823][C-000006d6] bridge_channel.c: Channel SIP/225-00000ef5 left ‘simple_bridge’ basic-bridge <1033b3cb-ff69-4cac-ae8f-71fdf6b95735>
VERBOSE[27823][C-000006d6] app_macro.c: Spawn extension (macro-dial-one, s, 55) exited non-zero on ‘SIP/225-00000ef5’ in macro ‘dial-one’
VERBOSE[27823][C-000006d6] app_macro.c: Spawn extension (macro-exten-vm, s, 26) exited non-zero on ‘SIP/225-00000ef5’ in macro ‘exten-vm’
VERBOSE[27823][C-000006d6] pbx.c: Spawn extension (ext-local, 227, 2) exited non-zero on ‘SIP/225-00000ef5’
VERBOSE[27823][C-000006d6] pbx.c: Executing [h@ext-local:1] Macro(“SIP/225-00000ef5”, “hangupcall,”) in new stack
VERBOSE[27823][C-000006d6] pbx.c: Executing [s@macro-hangupcall:1] GotoIf(“SIP/225-00000ef5”, “1?theend”) in new stack
VERBOSE[27823][C-000006d6] pbx_builtins.c: Goto (macro-hangupcall,s,3)
(I hope this is useful)