[Serusers] Ringback tone on SER

[Thorsten]

Hi guys,
I'm trying to set up a SER server between 2 asterisk machines. I run 
into 2 issues.
Whenever I call someone I don't get any ringback tone even so the call 
initiating asterisk machine gets the 180 message after 100.
<--- SIP read from 10.4.1.80:5060 --->
SIP/2.0 100 trying -- your call is important to us
Via: SIP/2.0/UDP 10.4.1.80:5060;branch=z9hG4bK2729bab8;rport=5060
From: "Thorsten" <sip:1000 at 82.98.89.134>;tag=as4c964973
To: <sip:017683035400 at 10.4.1.80>
Call-ID: 5e209fbb7ebdbad97f0193515c5a2982 at 82.98.89.134
CSeq: 102 INVITE
Server: Sip EXpress router (0.9.7 (i386/linux))
Content-Length: 0
Warning: 392 10.4.1.80:5060 "Noisy feedback tells:  pid=459 
req_src_ip=82.98.89.134 req_src_port=5060 
in_uri=sip:017683035400 at 10.4.1.80 
out_uri=sip:017683035400 at 192.168.13.102:5060 via_cnt==1"


<------------->
--- (9 headers 0 lines) ---
mg03*CLI>
<--- SIP read from 10.4.1.80:5060 --->
SIP/2.0 180 Ringing
Via: SIP/2.0/UDP 10.4.1.80:5060;branch=z9hG4bK2729bab8;rport=5060
From: "Thorsten" <sip:1000 at 82.98.89.134>;tag=as4c964973
To: <sip:017683035400 at 10.4.1.80>;tag=59cea6e4c6ca71e2f82c9c3c8b464af6.bec2
Call-ID: 5e209fbb7ebdbad97f0193515c5a2982 at 82.98.89.134
CSeq: 102 INVITE
Server: Sip EXpress router (0.9.7 (i386/linux))
Content-Length: 0
Warning: 392 10.4.1.80:5060 "Noisy feedback tells:  pid=459 
req_src_ip=82.98.89.134 req_src_port=5060 
in_uri=sip:017683035400 at 10.4.1.80 
out_uri=sip:017683035400 at 192.168.13.102:5060 via_cnt==1

On SER I've configured to send this message:
if (method=="INVITE") {
                        if (uri =~ "sip:0[0-9]@*") {
                                route(3);
                                sl_send_reply("180", "Ringing");
                                break;
                        }
                };

The other issue is that I don't see the caller id on the receiver side. 
I don't know if it is a asterisk or a SER issue. Only if I set the 
caller id on asterisk manual in extensions.conf with
exten => _X.,1,Set(CALLERID(num)=06965006100)
I'll see the caller id on the receiver side.

I would really appreciate any help
Thanks
Thorsten