Problem: FB7170 sendet nicht SDP-Paket

[gwojtal]

Hallo,

ich habe ein Problem mit FB7170/en/A/.67 . Die Box sendet die "erste SDP Paket" nicht. Mein Voipanbieter sagt, dieses Paket muß gesendet werden, wenn ich meine Probleme lösen möchte.

Meine Konfiguration:

enabled = yes;
username = "xxxx"
authname = "";
passwd = "xxxx"
registrar = "sip.tlenofon.pl";
ttl = 30m;
sipping_enabled = no;
sipping_interval = 1m;
name = "xxxx";
dtmfcfg = dtmfcfg_automatic;
register_failwaitmax = 1m;
stunserver = "stun.tlenofon.pl";
stunserverport = 3478;
use_internat_calling_numb = no;
is_nat_aware = no;
localip = 0.0.0.0;
ignore_received_header = no;
clirtype = clir_displayname;
colptype = colp_none;
only_one_dialog = no;
presence_supported = no;
mwi_supported = yes;
ccbs_supported = no;
reg_support = regsupport_auto;
tx_packetsize_in_ms = 20;
xrtp_periodic = 0;
reject_refer = yes;
no_register_fetch = no;
do_not_register = no;
only_call_from_registrar = no;
outboundproxy = "sip.tlenofon.pl";
outboundproxy_without_route_header = no;
dditype = ddi_none;
ddireception = "";
backup_wanted = no;
use_session_timer = no;
use_rport = yes;
add_rtpmap_for_all_codecs = yes;
answer_only_one_codec = no;
without_annexb_no = no;
without_annexb_no = no;
srtp_supported = no;
use_488_for_no_t38 = no;
g726_via_rfc3551 = no;

Was soll ich tun?