For demo_bob and demo_alice do they connect to the FQDN or to the EIP (Elastic IP, like static IP) of the server?
So far as I can tell, the AWS EC2 instance connects well with anveo:
abc*CLI>
abc*CLI> sip show peers
Name/username Host Dyn Forcerport Comedia ACL Port Status Description
anveo/1234567890 xx.x.xxx.xx Yes Yes 5010 OK (40 ms)
demo_alice (Unspecified) D Auto (No) No 0 UNKNOWN
demo_bob (Unspecified) D Auto (No) No 0 UNKNOWN
piter (Unspecified) D Yes Yes 0 UNKNOWN
thufir (Unspecified) D Yes Yes 0 UNKNOWN
5 sip peers [Monitored: 1 online, 4 offline Unmonitored: 0 online, 0 offline]
abc*CLI>
abc*CLI> sip show registry
Host dnsmgr Username Refresh State Reg.Time
sip.anveo.com:5010 N 1234567890 165 Registered Wed, 11 Jan 2017 10:40:16
1 SIP registrations.
abc*CLI>
abc*CLI> sip show objects
-= Peer objects: 5 static, 0 realtime, 1 autocreate =-
name: demo_bob
type: peer
objflags: 0
refcount: 1
name: piter
type: peer
objflags: 0
refcount: 1
name: anveo
type: peer
objflags: 0
refcount: 3
name: thufir
type: peer
objflags: 0
refcount: 1
name: demo_alice
type: peer
objflags: 0
refcount: 1
-= Peer objects by IP =-
name: anveo
type: peer
objflags: 0
refcount: 3
-= Registry objects: 1 =-
name: 1234567890:abcdefghij@sip.anveo.com:5010
-= Dialog objects:
name: cb004ab7-8017d201-97e9e23@xx.xxx.xx.xx
type: dialog
objflags: 0
refcount: 2
abc*CLI>
abc*CLI> sip show peer anveo
* Name : anveo
Description :
Secret : <Set>
MD5Secret : <Not set>
Remote Secret: <Not set>
Context : from-anveo
Record On feature : automon
Record Off feature : automon
Subscr.Cont. : <Not set>
Language :
Tonezone : <Not set>
AMA flags : Unknown
Transfer mode: open
CallingPres : Presentation Allowed, Not Screened
Callgroup :
Pickupgroup :
Named Callgr :
Nam. Pickupgr:
MOH Suggest :
Mailbox :
VM Extension : asterisk
LastMsgsSent : 0/0
Call limit : 0
Max forwards : 0
Dynamic : No
Callerid : "" <>
MaxCallBR : 384 kbps
Expire : -1
Insecure : port,invite
Force rport : Yes
Symmetric RTP: Yes
ACL : No
DirectMedACL : No
T.38 support : No
T.38 EC mode : Unknown
T.38 MaxDtgrm: 4294967295
DirectMedia : Yes
PromiscRedir : No
User=Phone : No
Video Support: No
Text Support : No
Ign SDP ver : No
Trust RPID : No
Send RPID : No
Path support : No
Path : N/A
TrustIDOutbnd: Legacy
Subscriptions: Yes
Overlap dial : Yes
DTMFmode : rfc2833
Timer T1 : 500
Timer B : 32000
ToHost : sip.anveo.com
Addr->IP : xx.x.xxx.xx:5010
Defaddr->IP : (null)
Prim.Transp. : UDP
Allowed.Trsp : UDP
Def. Username: 1234567890
SIP Options : (none)
Codecs : (ulaw)
Auto-Framing : No
Status : OK (40 ms)
Useragent :
Reg. Contact :
Qualify Freq : 60000 ms
Keepalive : 0 ms
Sess-Timers : Accept
Sess-Refresh : uas
Sess-Expires : 1800 secs
Min-Sess : 90 secs
RTP Engine : asterisk
Parkinglot :
Use Reason : No
Encryption : No
abc*CLI>
abc*CLI>