diff --git a/go.mod b/go.mod
index 99af2e7..6ad3fe9 100644
--- a/go.mod
+++ b/go.mod
@@ -42,7 +42,9 @@ require (
 	github.com/pkg/errors v0.8.0
 	github.com/pmezard/go-difflib v1.0.0 // indirect
 	github.com/retailcrm/api-client-go v1.1.0
-	github.com/retailcrm/mg-transport-api-client-go v1.1.17
+	github.com/retailcrm/mg-transport-api-client-go v1.1.18
+	github.com/smartystreets/assertions v0.0.0-20180820201707-7c9eb446e3cf // indirect
+	github.com/smartystreets/goconvey v0.0.0-20180222194500-ef6db91d284a // indirect
 	github.com/stevvooe/resumable v0.0.0-20180830230917-22b14a53ba50 // indirect
 	github.com/stretchr/testify v1.2.2
 	github.com/technoweenie/multipartstreamer v1.0.1 // indirect
diff --git a/go.sum b/go.sum
index 1584ae8..9848a8c 100644
--- a/go.sum
+++ b/go.sum
@@ -89,6 +89,12 @@ github.com/retailcrm/api-client-go v1.1.0 h1:APPO6ccJAeMV7Jz7BhrtDKSOm2r1j5Ft6fu
 github.com/retailcrm/api-client-go v1.1.0/go.mod h1:QRoPE2SM6ST7i2g0yEdqm7Iw98y7cYuq3q14Ot+6N8c=
 github.com/retailcrm/mg-transport-api-client-go v1.1.17 h1:8L0meFJFZwr3TyiF/xypI+g0xRXIGkWhyQ6qiCfojqw=
 github.com/retailcrm/mg-transport-api-client-go v1.1.17/go.mod h1:AWV6BueE28/6SCoyfKURTo4lF0oXYoOKmHTzehd5vAI=
+github.com/retailcrm/mg-transport-api-client-go v1.1.18 h1:V59Ai79N1jrS1kAnQggNoRYsoAdr2RUV7Hf0xbw9r9Q=
+github.com/retailcrm/mg-transport-api-client-go v1.1.18/go.mod h1:AWV6BueE28/6SCoyfKURTo4lF0oXYoOKmHTzehd5vAI=
+github.com/smartystreets/assertions v0.0.0-20180820201707-7c9eb446e3cf h1:6V1qxN6Usn4jy8unvggSJz/NC790tefw8Zdy6OZS5co=
+github.com/smartystreets/assertions v0.0.0-20180820201707-7c9eb446e3cf/go.mod h1:OnSkiWE9lh6wB0YB77sQom3nweQdgAjqCqsofrRNTgc=
+github.com/smartystreets/goconvey v0.0.0-20180222194500-ef6db91d284a h1:JSvGDIbmil4Ui/dDdFBExb7/cmkNjyX5F97oglmvCDo=
+github.com/smartystreets/goconvey v0.0.0-20180222194500-ef6db91d284a/go.mod h1:XDJAKZRPZ1CvBcN2aX5YOUTYGHki24fSF0Iv48Ibg0s=
 github.com/stevvooe/resumable v0.0.0-20180830230917-22b14a53ba50 h1:4bT0pPowCpQImewr+BjzfUKcuFW+KVyB8d1OF3b6oTI=
 github.com/stevvooe/resumable v0.0.0-20180830230917-22b14a53ba50/go.mod h1:1pdIZTAHUz+HDKDVZ++5xg/duPlhKAIzw9qy42CWYp4=
 github.com/stretchr/testify v1.2.2 h1:bSDNvY7ZPG5RlJ8otE/7V6gMiyenm9RtJ7IUVIAoJ1w=
diff --git a/src/main.go b/src/main.go
index 35e8319..1a1ee8d 100644
--- a/src/main.go
+++ b/src/main.go
@@ -15,6 +15,7 @@ type Options struct {
 }
 
 const Type = "telegram"
+const MaxCharsCount = 4096
 
 var (
 	config   *TransportConfig
diff --git a/src/routing.go b/src/routing.go
index 372b941..fea45a5 100644
--- a/src/routing.go
+++ b/src/routing.go
@@ -330,10 +330,11 @@ func getChannelSettings(cid ...uint64) v1.Channel {
 				Read:      v1.ChannelFeatureNone,
 			},
 			Text: v1.ChannelSettingsText{
-				Creating: v1.ChannelFeatureBoth,
-				Editing:  v1.ChannelFeatureBoth,
-				Quoting:  v1.ChannelFeatureBoth,
-				Deleting: v1.ChannelFeatureReceive,
+				Creating:      v1.ChannelFeatureBoth,
+				Editing:       v1.ChannelFeatureBoth,
+				Quoting:       v1.ChannelFeatureBoth,
+				Deleting:      v1.ChannelFeatureReceive,
+				MaxCharsCount: MaxCharsCount,
 			},
 			Product: v1.Product{
 				Creating: v1.ChannelFeatureReceive,