[Serusers] need help to use Zultys ZIP 4x4

[Sun Yen-Rong (Dan)]

Hi All,

I have set up a SIP network and is able to establish voice calls between
two Xten X-Lite clients successfully. I configured the SER to
force_rtp() regardless if a client is behind or not.

I am conducting a test between Zultys ZIP 4x4 SIP phone and Xten X-Lite.
So far I can successfully establish a call between the X-lite and the
ZIP4x4. However, neither end can hear each other's voice. Can someone
give me some suggestions, please?

Thank you,

Dan.

ps: the following is my configuration file:


# ----------- global configuration parameters ------------------------

# debugging mode
debug=3          
fork=yes
log_stderror=yes

check_via=no
dns=no
rev_dns=no
port=5060
children=4
fifo="/tmp/ser_fifo"

# ------------------ module loading ----------------------------------

loadmodule "/usr/local/lib/ser/modules/nathelper.so"
loadmodule "/usr/local/lib/ser/modules/textops.so"
loadmodule "/usr/local/lib/ser/modules/tm.so"
loadmodule "/usr/local/lib/ser/modules/rr.so"
loadmodule "/usr/local/lib/ser/modules/maxfwd.so"
loadmodule "/usr/local/lib/ser/modules/registrar.so"
loadmodule "/usr/local/lib/ser/modules/usrloc.so"
loadmodule "/usr/local/lib/ser/modules/sl.so"
loadmodule "/usr/local/lib/ser/modules/mysql.so"
loadmodule "/usr/local/lib/ser/modules/auth.so"
loadmodule "/usr/local/lib/ser/modules/auth_db.so"
loadmodule "/usr/local/lib/ser/modules/acc.so"

# ----------------- setting module-specific parameters ---------------
# -- usrloc params --
modparam("usrloc", "db_mode", 1)
modparam("usrloc", "db_url", "sql://ser:heslo@dhcp32.bbtranz.co.nz/ser")

# -- auth params --
# Uncomment if you are using auth module
#
modparam("auth_db", "calculate_ha1", yes)
modparam("auth_db", "db_url",
"sql://ser:heslo@dhcp32.bbtranz.co.nz/ser")
modparam("auth_db", "password_column", "password")

# -- rr params --
# add value to ;lr param to make some broken UAs happy
modparam("rr", "enable_full_lr", 1)

# -- nathelper params --
modparam("nathelper", "natping_interval", 60)
modparam("nathelper", "ping_nated_only", 1)
# special NAT flag indicates that a registered client is behind NAT
modparam("registrar", "nat_flag", 6)

# -- acc params --
#modparam("acc", "log_level", 1)
#modparam("acc", "log_flag", 1) 
modparam("acc", "db_url", "sql://ser:heslo@dhcp32.bbtranz.co.nz/ser")
modparam("acc", "db_missed_flag", 3)
modparam("acc", "db_flag", 1)

# ------------------ request-routing script --------------------------

# main routing logic

route{
	# initial sanity checks -- messages with
        # max_forwards==0, or excessively long requests
        if (!mf_process_maxfwd_header("10")) {
                sl_send_reply("483","Too Many Hops");
                break;
        };
        if (msg:len >=  max_len ) {
                sl_send_reply("513", "Message too big");
                break;
        };

	
	# compulsory processing of Route header fields and adding RR
	loose_route();

	# Test if a SIP message was sent behind NAT -- force use of rport 
	#if (nat_uac_test("3")) {
		setflag(6); # remember this is ATA
		force_rport();
		fix_nated_contact();
	#};

	/* registration (uses rewritten contacts) */
	if (method=="REGISTER") {
		if (!www_authorize("my_domain", "subscriber")) {
			www_challenge("my_domain", "0");
			break;
		};
		save("location");
		break;
	};

	if (method=="INVITE") {
		record_route();
		if (isflagset(6)) {
			fix_nated_sdp("3");
		};
		/* set up reply processing */
		t_on_reply("1");
	};

	if (method == "INVITE" || method == "CANCEL") {
		if (!lookup("location")) {
			sl_send_reply("404", "Not Found");
			acc_log_request("404 Not Found");
			break;
		};
	};

	if (method == "INVITE" || method == "BYE") {
		setflag(1);
	}
	# forward to current uri now; use stateful forwarding; that
        # works reliably even if we forward from TCP to UDP
	route(1);
}

route[1]{
	# test if the current request was sent behind NAT
        if (isflagset(6)) {
               record_route();
               t_on_reply("1");
               if (method=="INVITE") {
                       force_rtp_proxy();
                       append_hf("P-hint: request forced to rtp
proxy\r\n");
               };
        };
 
        if (!t_relay()) {
               sl_reply_error();
        };
 
}

# all incoming replies for t_onrepli-ed transactions enter here
onreply_route[1] {
	if(isflagset(6)) {
		fix_nated_contact();
		append_hf("P-hint: fixed NAT contact for response\r\n");
	};
	
	if ( (status=~"200" || status=~"183") ) {
		if(isflagset(6)) {
			force_rtp_proxy();
			append_hf("P-hint: request forced to rtp proxy\r\n");
		};
	};
}