diff --git a/debian/patches/series b/debian/patches/series
index 101b99bc7..8aeb03c20 100644
--- a/debian/patches/series
+++ b/debian/patches/series
@@ -61,6 +61,9 @@ sipwise/pua_dialoginfo_uuid.patch
 sipwise/dialplan-don-t-stop-loading-rules-on-error.patch
 sipwise/cfgt-skip-tm-vars-T_.patch
 sipwise/cfgt-skip.patch
+sipwise/cfgt-improve-detection-of-dynamic-format.patch
+sipwise/cfgt-fix-memory-leaks.patch
+sipwise/cfgt-skip_unknown.patch
 sipwise/topos-don-t-insert-contact-header-for-4xx-replies.patch
 sipwise/db_redis_skip_empty_keys.patch
 sipwise/db_redis_graceful_scan.patch
@@ -71,9 +74,8 @@ sipwise/pv_headers-fix-build-warning.patch
 sipwise/pv_headers-use-memset.patch
 ### active development
 sipwise/lcr-stopper_mode-parameter.patch
-sipwise/cfgt-improve-detection-of-dynamic-format.patch
-sipwise/cfgt-fix-memory-leaks.patch
-sipwise/cfgt-skip_unknown.patch
+sipwise/dialog-dlg_get_var.patch
+sipwise/dialog-dlg_set_var.patch
 #
 ### Don't just put stuff in any order
 ### use gbp pq import/export tooling to help maintain patches
diff --git a/debian/patches/sipwise/dialog-dlg_get_var.patch b/debian/patches/sipwise/dialog-dlg_get_var.patch
new file mode 100644
index 000000000..0658c4e79
--- /dev/null
+++ b/debian/patches/sipwise/dialog-dlg_get_var.patch
@@ -0,0 +1,213 @@
+From: Victor Seva <vseva@sipwise.com>
+Date: Fri, 6 May 2022 13:30:01 +0200
+Subject: dialog: dlg_get_var(ci, ft, tt, key, dst_var)
+
+---
+ src/modules/dialog/dialog.c             | 113 +++++++++++++++++++++++++++++++-
+ src/modules/dialog/doc/dialog_admin.xml |  48 ++++++++++++++
+ 2 files changed, 160 insertions(+), 1 deletion(-)
+
+diff --git a/src/modules/dialog/dialog.c b/src/modules/dialog/dialog.c
+index 243bb9b..8e06c01 100644
+--- a/src/modules/dialog/dialog.c
++++ b/src/modules/dialog/dialog.c
+@@ -193,7 +193,9 @@ static int w_is_known_dlg(struct sip_msg *);
+ static int w_dlg_set_ruri(sip_msg_t *, char *, char *);
+ static int w_dlg_db_load_callid(sip_msg_t *msg, char *ci, char *p2);
+ static int w_dlg_db_load_extra(sip_msg_t *msg, char *p1, char *p2);
+-
++static int fixup_dlg_get_var(void** param, int param_no);
++static int fixup_dlg_get_var_free(void** param, int param_no);
++static int w_dlg_get_var(struct sip_msg*, char*, char*, char*, char*, char*);
+ static int w_dlg_remote_profile(sip_msg_t *msg, char *cmd, char *pname,
+ 		char *pval, char *puid, char *expires);
+ static int fixup_dlg_remote_profile(void** param, int param_no);
+@@ -255,6 +257,8 @@ static cmd_export_t cmds[]={
+ 			0, ANY_ROUTE },
+ 	{"dlg_db_load_extra", (cmd_function)w_dlg_db_load_extra, 0, 0,
+ 			0, ANY_ROUTE },
++	{"dlg_get_var",(cmd_function)w_dlg_get_var, 5, fixup_dlg_get_var,
++			fixup_dlg_get_var_free, ANY_ROUTE },
+ 
+ 	{"load_dlg",  (cmd_function)load_dlg,   0, 0, 0, 0},
+ 	{0,0,0,0,0,0}
+@@ -1496,6 +1500,108 @@ static int fixup_dlg_bridge(void** param, int param_no)
+ 	return 0;
+ }
+ 
++static str *ki_dlg_get_var(sip_msg_t *msg, str *sc, str *sf, str *st, str *key)
++{
++	dlg_cell_t *dlg = NULL;
++	unsigned int dir = 0;
++	str *val = NULL;
++
++	if(sc==NULL || sc->s==NULL || sc->len == 0) {
++		LM_ERR("invalid Call-ID parameter\n");
++		return val;
++	}
++	if(sf==NULL || sf->s==NULL || sf->len == 0) {
++		LM_ERR("invalid From tag parameter\n");
++		return val;
++	}
++	if(st==NULL || st->s==NULL || st->len == 0) {
++		LM_ERR("invalid To tag parameter\n");
++		return val;
++	}
++
++	dlg = get_dlg(sc, sf, st, &dir);
++	if(dlg==NULL)
++		return val;
++	val = get_dlg_variable(dlg, key);
++	dlg_release(dlg);
++	return val;
++}
++
++static int w_dlg_get_var(struct sip_msg *msg, char *ci, char *ft, char *tt, char *key, char *pv)
++{
++	str sc = STR_NULL;
++	str sf = STR_NULL;
++	str st = STR_NULL;
++	str k = STR_NULL;
++	str *val = NULL;
++	pv_value_t dst_val;
++	pv_spec_t* dst_pv;
++
++	if(ci==0 || ft==0 || tt==0)
++	{
++		LM_ERR("invalid parameters\n");
++		return -1;
++	}
++
++	if(fixup_get_svalue(msg, (gparam_p)ci, &sc)!=0)
++	{
++		LM_ERR("unable to get Call-ID\n");
++		return -1;
++	}
++
++	if(fixup_get_svalue(msg, (gparam_p)ft, &sf)!=0)
++	{
++		LM_ERR("unable to get From tag\n");
++		return -1;
++	}
++
++	if(fixup_get_svalue(msg, (gparam_p)tt, &st)!=0)
++	{
++		LM_ERR("unable to get To Tag\n");
++		return -1;
++	}
++	if(st.s==NULL || st.len == 0)
++	{
++		LM_ERR("invalid To tag parameter\n");
++		return -1;
++	}
++	if(fixup_get_svalue(msg, (gparam_p)key, &k)!=0)
++	{
++		LM_ERR("unable to get key name\n");
++		return -1;
++	}
++	dst_pv = (pv_spec_t *)pv;
++	val = ki_dlg_get_var(msg, &sc, &sf, &st, &k);
++	if(val) {
++		memset(&dst_val, 0, sizeof(pv_value_t));
++		dst_val.flags |= PV_VAL_STR;
++		dst_val.rs.s = val->s;
++		dst_val.rs.len = val->len;
++		if(pv_set_spec_value(msg, dst_pv, 0, &dst_val) != 0) return -1;
++	} else {
++		if(pv_get_null(msg, NULL, &dst_val) != 0) return -1;
++	}
++	return 1;
++}
++
++static int fixup_dlg_get_var(void** param, int param_no)
++{
++	if(param_no>=1 && param_no<=4)
++		return fixup_spve_null(param, 1);
++	if(param_no==5)
++		return fixup_pvar_all(param, 1);
++	return 0;
++}
++
++static int fixup_dlg_get_var_free(void** param, int param_no)
++{
++	if (param_no <= 4)
++		return fixup_free_spve_null(param, 1);
++	if (param_no == 5)
++		return fixup_free_pvar_all(param, 1);
++	return -1;
++}
++
+ static int ki_dlg_get(sip_msg_t *msg, str *sc, str *sf, str *st)
+ {
+ 	dlg_cell_t *dlg = NULL;
+@@ -2081,6 +2187,11 @@ static sr_kemi_t sr_kemi_dialog_exports[] = {
+ 		{ SR_KEMIP_STR, SR_KEMIP_STR, SR_KEMIP_STR,
+ 			SR_KEMIP_NONE, SR_KEMIP_NONE, SR_KEMIP_NONE }
+ 	},
++	{ str_init("dialog"), str_init("dlg_get_var"),
++		SR_KEMIP_STR, ki_dlg_get_var,
++		{ SR_KEMIP_STR, SR_KEMIP_STR, SR_KEMIP_STR,
++			SR_KEMIP_STR, SR_KEMIP_NONE, SR_KEMIP_NONE }
++	},
+ 	{ str_init("dialog"), str_init("set_dlg_profile_static"),
+ 		SR_KEMIP_INT, ki_set_dlg_profile_static,
+ 		{ SR_KEMIP_STR, SR_KEMIP_NONE, SR_KEMIP_NONE,
+diff --git a/src/modules/dialog/doc/dialog_admin.xml b/src/modules/dialog/doc/dialog_admin.xml
+index 987bd54..26d1cbb 100644
+--- a/src/modules/dialog/doc/dialog_admin.xml
++++ b/src/modules/dialog/doc/dialog_admin.xml
+@@ -2076,6 +2076,54 @@ if(dlg_get("abcdef", "123", "456"))
+ 		</example>
+ 	</section>
+ 
++	<section id="dialog.f.dlg_get_var">
++		<title>
++		<function moreinfo="none">dlg_get_var(callid, ftag, ttag, name, dst)</function>
++		</title>
++		<para>
++			Get dlg_var of another dialog value based on Call-ID, From-Tag and To-Tag
++			parameters.
++		</para>
++		<para>Meaning of the parameters is as follows:</para>
++		<itemizedlist>
++		<listitem>
++			<para><emphasis>callid</emphasis> - SIP call-id.
++			</para>
++		</listitem>
++		<listitem>
++			<para><emphasis>ftag</emphasis> - SIP From tag.
++			</para>
++		</listitem>
++		<listitem>
++			<para><emphasis>ttag</emphasis> - SIP To tag.
++			</para>
++		</listitem>
++		<listitem>
++			<para><emphasis>name</emphasis> - key name of the $dlg_var.
++			</para>
++		</listitem>
++		<listitem>
++			<para><emphasis>dst</emphasis> - pv to store the value of $dlg_var(name).
++			</para>
++		</listitem>
++		</itemizedlist>
++		<para>
++		This function can be used from BRANCH_ROUTE,
++			REQUEST_ROUTE, ONREPLY_ROUTE and FAILURE_ROUTE.
++		</para>
++		<example>
++		<title><function>dlg_get_var</function> usage</title>
++		<programlisting format="linespecific">
++...
++if(dlg_get_var("$var(ci)", "$var(ft)", "456", "test", "$var(tmp)"))
++{
++	xdbg("$$dlg_var(test):$var(tmp)\n");
++}
++...
++</programlisting>
++		</example>
++	</section>
++
+ 	<section id="dialog.f.is_known_dlg">
+ 		<title>
+ 		<function moreinfo="none">is_known_dlg()</function>
diff --git a/debian/patches/sipwise/dialog-dlg_set_var.patch b/debian/patches/sipwise/dialog-dlg_set_var.patch
new file mode 100644
index 000000000..89f240deb
--- /dev/null
+++ b/debian/patches/sipwise/dialog-dlg_set_var.patch
@@ -0,0 +1,200 @@
+From: Victor Seva <vseva@sipwise.com>
+Date: Wed, 11 May 2022 15:50:14 +0200
+Subject: dialog: dlg_set_var(callid, ft, tt, key, value)
+
+---
+ src/modules/dialog/dialog.c             | 100 ++++++++++++++++++++++++++++++++
+ src/modules/dialog/doc/dialog_admin.xml |  48 +++++++++++++++
+ 2 files changed, 148 insertions(+)
+
+diff --git a/src/modules/dialog/dialog.c b/src/modules/dialog/dialog.c
+index 8e06c01..42e3e1b 100644
+--- a/src/modules/dialog/dialog.c
++++ b/src/modules/dialog/dialog.c
+@@ -196,6 +196,9 @@ static int w_dlg_db_load_extra(sip_msg_t *msg, char *p1, char *p2);
+ static int fixup_dlg_get_var(void** param, int param_no);
+ static int fixup_dlg_get_var_free(void** param, int param_no);
+ static int w_dlg_get_var(struct sip_msg*, char*, char*, char*, char*, char*);
++static int fixup_dlg_set_var(void** param, int param_no);
++static int fixup_dlg_set_var_free(void** param, int param_no);
++static int w_dlg_set_var(struct sip_msg*, char*, char*, char*, char*, char*);
+ static int w_dlg_remote_profile(sip_msg_t *msg, char *cmd, char *pname,
+ 		char *pval, char *puid, char *expires);
+ static int fixup_dlg_remote_profile(void** param, int param_no);
+@@ -259,6 +262,8 @@ static cmd_export_t cmds[]={
+ 			0, ANY_ROUTE },
+ 	{"dlg_get_var",(cmd_function)w_dlg_get_var, 5, fixup_dlg_get_var,
+ 			fixup_dlg_get_var_free, ANY_ROUTE },
++	{"dlg_set_var",(cmd_function)w_dlg_set_var, 5, fixup_dlg_set_var,
++			fixup_dlg_set_var_free, ANY_ROUTE },
+ 
+ 	{"load_dlg",  (cmd_function)load_dlg,   0, 0, 0, 0},
+ 	{0,0,0,0,0,0}
+@@ -1602,6 +1607,96 @@ static int fixup_dlg_get_var_free(void** param, int param_no)
+ 	return -1;
+ }
+ 
++static int ki_dlg_set_var(sip_msg_t *msg, str *sc, str *sf, str *st, str *key, str *val)
++{
++	dlg_cell_t *dlg = NULL;
++	unsigned int dir = 0;
++	int ret = 1;
++
++	if(sc==NULL || sc->s==NULL || sc->len == 0) {
++		LM_ERR("invalid Call-ID parameter\n");
++		return -1;
++	}
++	if(sf==NULL || sf->s==NULL || sf->len == 0) {
++		LM_ERR("invalid From tag parameter\n");
++		return -1;
++	}
++	if(st==NULL || st->s==NULL || st->len == 0) {
++		LM_ERR("invalid To tag parameter\n");
++		return -1;
++	}
++
++	dlg = get_dlg(sc, sf, st, &dir);
++	if(dlg==NULL)
++		return -1;
++	if(set_dlg_variable(dlg, key, val) != 0) ret = -1;
++	dlg_release(dlg);
++	return ret;
++}
++
++static int w_dlg_set_var(struct sip_msg *msg, char *ci, char *ft, char *tt, char *key, char *val)
++{
++	str sc = STR_NULL;
++	str sf = STR_NULL;
++	str st = STR_NULL;
++	str k = STR_NULL;
++	str v = STR_NULL;
++
++	if(ci==0 || ft==0 || tt==0)
++	{
++		LM_ERR("invalid parameters\n");
++		return -1;
++	}
++
++	if(fixup_get_svalue(msg, (gparam_p)ci, &sc)!=0)
++	{
++		LM_ERR("unable to get Call-ID\n");
++		return -1;
++	}
++
++	if(fixup_get_svalue(msg, (gparam_p)ft, &sf)!=0)
++	{
++		LM_ERR("unable to get From tag\n");
++		return -1;
++	}
++
++	if(fixup_get_svalue(msg, (gparam_p)tt, &st)!=0)
++	{
++		LM_ERR("unable to get To Tag\n");
++		return -1;
++	}
++	if(st.s==NULL || st.len == 0)
++	{
++		LM_ERR("invalid To tag parameter\n");
++		return -1;
++	}
++	if(fixup_get_svalue(msg, (gparam_p)key, &k)!=0)
++	{
++		LM_ERR("unable to get key name\n");
++		return -1;
++	}
++	if(fixup_get_svalue(msg, (gparam_p)val, &v)!=0)
++	{
++		LM_ERR("unable to get value\n");
++		return -1;
++	}
++	return ki_dlg_set_var(msg, &sc, &sf, &st, &k, &v);
++}
++
++static int fixup_dlg_set_var(void** param, int param_no)
++{
++	if(param_no>=1 && param_no<=5)
++		return fixup_spve_null(param, 1);
++	return 0;
++}
++
++static int fixup_dlg_set_var_free(void** param, int param_no)
++{
++	if (param_no <= 5)
++		return fixup_free_spve_null(param, 1);
++	return -1;
++}
++
+ static int ki_dlg_get(sip_msg_t *msg, str *sc, str *sf, str *st)
+ {
+ 	dlg_cell_t *dlg = NULL;
+@@ -2192,6 +2287,11 @@ static sr_kemi_t sr_kemi_dialog_exports[] = {
+ 		{ SR_KEMIP_STR, SR_KEMIP_STR, SR_KEMIP_STR,
+ 			SR_KEMIP_STR, SR_KEMIP_NONE, SR_KEMIP_NONE }
+ 	},
++	{ str_init("dialog"), str_init("dlg_set_var"),
++		SR_KEMIP_INT, ki_dlg_set_var,
++		{ SR_KEMIP_STR, SR_KEMIP_STR, SR_KEMIP_STR,
++			SR_KEMIP_STR, SR_KEMIP_STR, SR_KEMIP_NONE }
++	},
+ 	{ str_init("dialog"), str_init("set_dlg_profile_static"),
+ 		SR_KEMIP_INT, ki_set_dlg_profile_static,
+ 		{ SR_KEMIP_STR, SR_KEMIP_NONE, SR_KEMIP_NONE,
+diff --git a/src/modules/dialog/doc/dialog_admin.xml b/src/modules/dialog/doc/dialog_admin.xml
+index 26d1cbb..242a487 100644
+--- a/src/modules/dialog/doc/dialog_admin.xml
++++ b/src/modules/dialog/doc/dialog_admin.xml
+@@ -2124,6 +2124,54 @@ if(dlg_get_var("$var(ci)", "$var(ft)", "456", "test", "$var(tmp)"))
+ 		</example>
+ 	</section>
+ 
++	<section id="dialog.f.dlg_set_var">
++		<title>
++		<function moreinfo="none">dlg_set_var(callid, ftag, ttag, name, value)</function>
++		</title>
++		<para>
++			Set dlg_var of another dialog value based on Call-ID, From-Tag and To-Tag
++			parameters.
++		</para>
++		<para>Meaning of the parameters is as follows:</para>
++		<itemizedlist>
++		<listitem>
++			<para><emphasis>callid</emphasis> - SIP call-id.
++			</para>
++		</listitem>
++		<listitem>
++			<para><emphasis>ftag</emphasis> - SIP From tag.
++			</para>
++		</listitem>
++		<listitem>
++			<para><emphasis>ttag</emphasis> - SIP To tag.
++			</para>
++		</listitem>
++		<listitem>
++			<para><emphasis>name</emphasis> - key name of the $dlg_var.
++			</para>
++		</listitem>
++		<listitem>
++			<para><emphasis>value</emphasis> - string value to store at $dlg_var(name).
++			</para>
++		</listitem>
++		</itemizedlist>
++		<para>
++		This function can be used from BRANCH_ROUTE,
++			REQUEST_ROUTE, ONREPLY_ROUTE and FAILURE_ROUTE.
++		</para>
++		<example>
++		<title><function>dlg_set_var</function> usage</title>
++		<programlisting format="linespecific">
++...
++if(dlg_set_var("$var(ci)", "$var(ft)", "456", "test", "$var(tmp)"))
++{
++	xdbg("set $$dlg_var(test):$var(tmp)\n");
++}
++...
++</programlisting>
++		</example>
++	</section>
++
+ 	<section id="dialog.f.is_known_dlg">
+ 		<title>
+ 		<function moreinfo="none">is_known_dlg()</function>