res_pjsip: Add user=phone on From and PAID for usereqphone=yes

Adding user=phone to local-side uri's when user_eq_phone=yes is set for
an endpoint. Previously this would only add the header to the To and R-URI.

ASTERISK-30178

Change-Id: Id3bfb5d225d762e7d2668c023fe09e4541ae8600

doc/CHANGES-staging/res_pjsip_usereqphone.txt

@@ -0,0 +1,4 @@
+subject: res_pjsip
+
+user_eq_phone=yes flag on a pjsip endpoint will now set user=phone on
+the From and Prviacy headers in addition to the existing To and RURI

res/res_pjsip.c

@@ -870,6 +870,7 @@ pjsip_dialog *ast_sip_create_dialog_uac(const struct ast_sip_endpoint *endpoint,
 	/* Add the user=phone parameter if applicable */
 	ast_sip_add_usereqphone(endpoint, dlg->pool, dlg->target);
 	ast_sip_add_usereqphone(endpoint, dlg->pool, dlg->remote.info->uri);
+	ast_sip_add_usereqphone(endpoint, dlg->pool, dlg->local.info->uri);
 
 	if (!ast_strlen_zero(outbound_proxy)) {
 		pjsip_route_hdr route_set, *route;